<?xml version='1.0' encoding='US-ASCII'?><schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:nlvt="http://nlvt/20260630" xmlns:dei="http://xbrl.sec.gov/dei/2025" xmlns:srt-types="http://fasb.org/srt-types/2025" xmlns:deprecated="http://www.xbrl.org/2009/role/deprecated" xmlns:dtr="http://www.xbrl.org/2009/dtr" xmlns:oef="http://xbrl.sec.gov/oef/2025" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:us-gaap="http://fasb.org/us-gaap/2025" xmlns:oef-pre="http://xbrl.sec.gov/oef-pre/2025" xmlns:oef-lab="http://xbrl.sec.gov/oef-lab/2025" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:country="http://xbrl.sec.gov/country/2025" xmlns:us-roles="http://fasb.org/us-roles/2025" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:us-types="http://fasb.org/us-types/2025" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2022-03-31" xmlns:oef-def="http://xbrl.sec.gov/oef-def/2025" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:srt="http://fasb.org/srt/2025" xmlns:oef-sr="http://xbrl.sec.gov/oef-sr/2025" xmlns:srt-roles="http://fasb.org/srt-roles/2025" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrli="http://www.xbrl.org/2003/instance" targetNamespace="http://nlvt/20260630" elementFormDefault="qualified"><import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/><import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/><import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/><import namespace="http://fasb.org/us-types/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-types-2025.xsd"/><import namespace="http://www.xbrl.org/dtr/type/2022-03-31" schemaLocation="https://www.xbrl.org/dtr/type/2022-03-31/types.xsd"/><import namespace="http://xbrl.sec.gov/country/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025.xsd"/><import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/><import namespace="http://fasb.org/srt-types/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-types-2025.xsd"/><import namespace="http://xbrl.sec.gov/oef-sr/2025" schemaLocation="https://xbrl.sec.gov/oef/2025/oef-sr-2025.xsd"/><import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd"/><import namespace="http://fasb.org/us-roles/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd"/><import namespace="http://fasb.org/srt-roles/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-roles-2025.xsd"/><annotation><appinfo><link:linkbase id="lnk"><link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/><link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReport" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReport"/><link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReportHoldingsDetails"/><link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReportLineGraphDetails"/><link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReportAverageAnnualReturnDetails"/><link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ClassOnly"/><link:roleRef roleURI="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#BroadBasedIndexOnly"/><link:roleRef roleURI="http://xbrl.sec.gov/oef/role/IndustrySectorOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#IndustrySectorOnly"/><link:roleRef roleURI="http://xbrl.sec.gov/oef/role/LargestHoldingOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#LargestHoldingOnly"/><link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ShareholderReport"><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097933Member" xlink:label="C000097933Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097933Member" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097932Member" xlink:label="C000097932Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097932Member" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112453Member" xlink:label="C000112453Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112453Member" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112454Member" xlink:label="C000112454Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112454Member" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158840Member" xlink:label="C000158840Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158840Member" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097936Member" xlink:label="C000097936Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097936Member" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097937Member" xlink:label="C000097937Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097937Member" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112457Member" xlink:label="C000112457Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112457Member" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112458Member" xlink:label="C000112458Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112458Member" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158842Member" xlink:label="C000158842Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158842Member" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097934Member" xlink:label="C000097934Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097934Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097935Member" xlink:label="C000097935Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097935Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112455Member" xlink:label="C000112455Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112455Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112456Member" xlink:label="C000112456Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112456Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158841Member" xlink:label="C000158841Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158841Member" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/></link:presentationLink><link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails"><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097933Member" xlink:label="C000097933Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097933Member" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097932Member" xlink:label="C000097932Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097932Member" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112453Member" xlink:label="C000112453Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112453Member" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112454Member" xlink:label="C000112454Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112454Member" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158840Member" xlink:label="C000158840Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158840Member" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097936Member" xlink:label="C000097936Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097936Member" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097937Member" xlink:label="C000097937Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097937Member" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112457Member" xlink:label="C000112457Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112457Member" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112458Member" xlink:label="C000112458Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112458Member" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158842Member" xlink:label="C000158842Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158842Member" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097934Member" xlink:label="C000097934Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097934Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097935Member" xlink:label="C000097935Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097935Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112455Member" xlink:label="C000112455Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112455Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112456Member" xlink:label="C000112456Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112456Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158841Member" xlink:label="C000158841Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158841Member" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_IndustrySectorDomain" xlink:label="IndustrySectorDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_Equities46434V290SectorMember" xlink:label="Equities46434V290SectorMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="Equities46434V290SectorMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_CashEquivalent825252885SectorMember" xlink:label="CashEquivalent825252885SectorMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="CashEquivalent825252885SectorMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_MoneyMarketSectorMember" xlink:label="MoneyMarketSectorMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="MoneyMarketSectorMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_FixedIncomeSectorMember" xlink:label="FixedIncomeSectorMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="FixedIncomeSectorMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_EquitySectorMember" xlink:label="EquitySectorMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="EquitySectorMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_CollateralforSecuritiesLoanedSectorMember" xlink:label="CollateralforSecuritiesLoanedSectorMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="CollateralforSecuritiesLoanedSectorMember" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_LargestHoldingsDomain" xlink:label="LargestHoldingsDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" xlink:label="A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A922908363VanguardSP500ETFCTIMember" xlink:label="A922908363VanguardSP500ETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A922908363VanguardSP500ETFCTIMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A921943858VanguardFTSEDevelopedMarketsETFCTIMember" xlink:label="A921943858VanguardFTSEDevelopedMarketsETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A921943858VanguardFTSEDevelopedMarketsETFCTIMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" xlink:label="A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" xlink:label="A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" xlink:label="A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" xlink:label="A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" xlink:label="A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" xlink:label="A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A92206C102VanguardShortMinusTermTreasuryETFCTIMember" xlink:label="A92206C102VanguardShortMinusTermTreasuryETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A92206C102VanguardShortMinusTermTreasuryETFCTIMember" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" xlink:label="A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" xlink:label="A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A922042858VanguardFTSEEmergingMarketsETFCTIMember" xlink:label="A922042858VanguardFTSEEmergingMarketsETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A922042858VanguardFTSEEmergingMarketsETFCTIMember" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" xlink:label="A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A46434V647iSharesGlobalREITETFCTIMember" xlink:label="A46434V647iSharesGlobalREITETFCTIMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LargestHoldingsDomain" xlink:to="A46434V647iSharesGlobalREITETFCTIMember" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/></link:presentationLink><link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails"><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097933Member" xlink:label="C000097933Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097933Member" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097932Member" xlink:label="C000097932Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097932Member" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112453Member" xlink:label="C000112453Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112453Member" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112454Member" xlink:label="C000112454Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112454Member" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158840Member" xlink:label="C000158840Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158840Member" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097936Member" xlink:label="C000097936Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097936Member" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097937Member" xlink:label="C000097937Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097937Member" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112457Member" xlink:label="C000112457Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112457Member" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112458Member" xlink:label="C000112458Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112458Member" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158842Member" xlink:label="C000158842Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158842Member" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097934Member" xlink:label="C000097934Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097934Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097935Member" xlink:label="C000097935Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097935Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112455Member" xlink:label="C000112455Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112455Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112456Member" xlink:label="C000112456Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112456Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158841Member" xlink:label="C000158841Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158841Member" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_BroadBasedIndexDomain" xlink:label="BroadBasedIndexDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3033BroadBasedIndexMember" xlink:label="SP500IndexTR3033BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3033BroadBasedIndexMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3034BroadBasedIndexMember" xlink:label="SP500IndexTR3034BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3034BroadBasedIndexMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3095BroadBasedIndexMember" xlink:label="SP500IndexTR3095BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3095BroadBasedIndexMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3096BroadBasedIndexMember" xlink:label="SP500IndexTR3096BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3096BroadBasedIndexMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2630BroadBasedIndexMember" xlink:label="SP500IndexTR2630BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR2630BroadBasedIndexMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3037BroadBasedIndexMember" xlink:label="SP500IndexTR3037BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3037BroadBasedIndexMember" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3038BroadBasedIndexMember" xlink:label="SP500IndexTR3038BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3038BroadBasedIndexMember" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3099BroadBasedIndexMember" xlink:label="SP500IndexTR3099BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3099BroadBasedIndexMember" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3100BroadBasedIndexMember" xlink:label="SP500IndexTR3100BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3100BroadBasedIndexMember" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2632BroadBasedIndexMember" xlink:label="SP500IndexTR2632BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR2632BroadBasedIndexMember" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3035BroadBasedIndexMember" xlink:label="SP500IndexTR3035BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3035BroadBasedIndexMember" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3036BroadBasedIndexMember" xlink:label="SP500IndexTR3036BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3036BroadBasedIndexMember" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3097BroadBasedIndexMember" xlink:label="SP500IndexTR3097BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3097BroadBasedIndexMember" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3098BroadBasedIndexMember" xlink:label="SP500IndexTR3098BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3098BroadBasedIndexMember" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2631BroadBasedIndexMember" xlink:label="SP500IndexTR2631BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR2631BroadBasedIndexMember" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/></link:presentationLink><link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails"><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097933Member" xlink:label="C000097933Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097933Member" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097932Member" xlink:label="C000097932Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097932Member" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112453Member" xlink:label="C000112453Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112453Member" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112454Member" xlink:label="C000112454Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112454Member" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158840Member" xlink:label="C000158840Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158840Member" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097936Member" xlink:label="C000097936Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097936Member" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097937Member" xlink:label="C000097937Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097937Member" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112457Member" xlink:label="C000112457Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112457Member" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112458Member" xlink:label="C000112458Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112458Member" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158842Member" xlink:label="C000158842Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158842Member" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097934Member" xlink:label="C000097934Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097934Member" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097935Member" xlink:label="C000097935Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000097935Member" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112455Member" xlink:label="C000112455Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112455Member" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112456Member" xlink:label="C000112456Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000112456Member" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158841Member" xlink:label="C000158841Member"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000158841Member" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/label" priority="1"/><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_BroadBasedIndexDomain" xlink:label="BroadBasedIndexDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3033BroadBasedIndexMember" xlink:label="SP500IndexTR3033BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3033BroadBasedIndexMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3034BroadBasedIndexMember" xlink:label="SP500IndexTR3034BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3034BroadBasedIndexMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3095BroadBasedIndexMember" xlink:label="SP500IndexTR3095BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3095BroadBasedIndexMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3096BroadBasedIndexMember" xlink:label="SP500IndexTR3096BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3096BroadBasedIndexMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2630BroadBasedIndexMember" xlink:label="SP500IndexTR2630BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR2630BroadBasedIndexMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3037BroadBasedIndexMember" xlink:label="SP500IndexTR3037BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3037BroadBasedIndexMember" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3038BroadBasedIndexMember" xlink:label="SP500IndexTR3038BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3038BroadBasedIndexMember" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3099BroadBasedIndexMember" xlink:label="SP500IndexTR3099BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3099BroadBasedIndexMember" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3100BroadBasedIndexMember" xlink:label="SP500IndexTR3100BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3100BroadBasedIndexMember" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2632BroadBasedIndexMember" xlink:label="SP500IndexTR2632BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR2632BroadBasedIndexMember" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3035BroadBasedIndexMember" xlink:label="SP500IndexTR3035BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3035BroadBasedIndexMember" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3036BroadBasedIndexMember" xlink:label="SP500IndexTR3036BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3036BroadBasedIndexMember" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3097BroadBasedIndexMember" xlink:label="SP500IndexTR3097BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3097BroadBasedIndexMember" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3098BroadBasedIndexMember" xlink:label="SP500IndexTR3098BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3098BroadBasedIndexMember" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2631BroadBasedIndexMember" xlink:label="SP500IndexTR2631BroadBasedIndexMember"/><link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR2631BroadBasedIndexMember" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1"/></link:presentationLink><link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ClassOnly"><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097933Member" xlink:label="C000097933Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000097933Member" order="1.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097932Member" xlink:label="C000097932Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000097932Member" order="2.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112453Member" xlink:label="C000112453Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000112453Member" order="3.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112454Member" xlink:label="C000112454Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000112454Member" order="4.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158840Member" xlink:label="C000158840Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000158840Member" order="5.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097936Member" xlink:label="C000097936Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000097936Member" order="6.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097937Member" xlink:label="C000097937Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000097937Member" order="7.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112457Member" xlink:label="C000112457Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000112457Member" order="8.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112458Member" xlink:label="C000112458Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000112458Member" order="9.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158842Member" xlink:label="C000158842Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000158842Member" order="10.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097934Member" xlink:label="C000097934Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000097934Member" order="11.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097935Member" xlink:label="C000097935Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000097935Member" order="12.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112455Member" xlink:label="C000112455Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000112455Member" order="13.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112456Member" xlink:label="C000112456Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000112456Member" order="14.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158841Member" xlink:label="C000158841Member"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000158841Member" order="15.0" priority="1"/></link:definitionLink><link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly"><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_BroadBasedIndexDomain" xlink:label="BroadBasedIndexDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3033BroadBasedIndexMember" xlink:label="SP500IndexTR3033BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3033BroadBasedIndexMember" order="1.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3034BroadBasedIndexMember" xlink:label="SP500IndexTR3034BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3034BroadBasedIndexMember" order="2.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3095BroadBasedIndexMember" xlink:label="SP500IndexTR3095BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3095BroadBasedIndexMember" order="3.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3096BroadBasedIndexMember" xlink:label="SP500IndexTR3096BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3096BroadBasedIndexMember" order="4.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2630BroadBasedIndexMember" xlink:label="SP500IndexTR2630BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR2630BroadBasedIndexMember" order="5.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3037BroadBasedIndexMember" xlink:label="SP500IndexTR3037BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3037BroadBasedIndexMember" order="6.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3038BroadBasedIndexMember" xlink:label="SP500IndexTR3038BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3038BroadBasedIndexMember" order="7.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3099BroadBasedIndexMember" xlink:label="SP500IndexTR3099BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3099BroadBasedIndexMember" order="8.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3100BroadBasedIndexMember" xlink:label="SP500IndexTR3100BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3100BroadBasedIndexMember" order="9.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2632BroadBasedIndexMember" xlink:label="SP500IndexTR2632BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR2632BroadBasedIndexMember" order="10.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3035BroadBasedIndexMember" xlink:label="SP500IndexTR3035BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3035BroadBasedIndexMember" order="11.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3036BroadBasedIndexMember" xlink:label="SP500IndexTR3036BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3036BroadBasedIndexMember" order="12.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3097BroadBasedIndexMember" xlink:label="SP500IndexTR3097BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3097BroadBasedIndexMember" order="13.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3098BroadBasedIndexMember" xlink:label="SP500IndexTR3098BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR3098BroadBasedIndexMember" order="14.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2631BroadBasedIndexMember" xlink:label="SP500IndexTR2631BroadBasedIndexMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="SP500IndexTR2631BroadBasedIndexMember" order="15.0" priority="1"/></link:definitionLink><link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/IndustrySectorOnly"><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_IndustrySectorDomain" xlink:label="IndustrySectorDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_Equities46434V290SectorMember" xlink:label="Equities46434V290SectorMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="Equities46434V290SectorMember" order="1.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_CashEquivalent825252885SectorMember" xlink:label="CashEquivalent825252885SectorMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="CashEquivalent825252885SectorMember" order="2.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_MoneyMarketSectorMember" xlink:label="MoneyMarketSectorMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="MoneyMarketSectorMember" order="3.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_FixedIncomeSectorMember" xlink:label="FixedIncomeSectorMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="FixedIncomeSectorMember" order="4.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_EquitySectorMember" xlink:label="EquitySectorMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="EquitySectorMember" order="5.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_CollateralforSecuritiesLoanedSectorMember" xlink:label="CollateralforSecuritiesLoanedSectorMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="CollateralforSecuritiesLoanedSectorMember" order="6.0" priority="1"/></link:definitionLink><link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/LargestHoldingOnly"><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_LargestHoldingsDomain" xlink:label="LargestHoldingsDomain"/><link:loc xlink:type="locator" xlink:href="#nlvt_A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" xlink:label="A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" order="1.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A922908363VanguardSP500ETFCTIMember" xlink:label="A922908363VanguardSP500ETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A922908363VanguardSP500ETFCTIMember" order="2.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A921943858VanguardFTSEDevelopedMarketsETFCTIMember" xlink:label="A921943858VanguardFTSEDevelopedMarketsETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A921943858VanguardFTSEDevelopedMarketsETFCTIMember" order="3.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" xlink:label="A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" order="4.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" xlink:label="A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" order="5.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" xlink:label="A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" order="6.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" xlink:label="A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" order="7.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" xlink:label="A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" order="8.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" xlink:label="A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" order="9.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A92206C102VanguardShortMinusTermTreasuryETFCTIMember" xlink:label="A92206C102VanguardShortMinusTermTreasuryETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A92206C102VanguardShortMinusTermTreasuryETFCTIMember" order="10.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" xlink:label="A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" order="11.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" xlink:label="A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" order="12.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A922042858VanguardFTSEEmergingMarketsETFCTIMember" xlink:label="A922042858VanguardFTSEEmergingMarketsETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A922042858VanguardFTSEEmergingMarketsETFCTIMember" order="13.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" xlink:label="A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" order="14.0" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A46434V647iSharesGlobalREITETFCTIMember" xlink:label="A46434V647iSharesGlobalREITETFCTIMember"/><link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LargestHoldingsDomain" xlink:to="A46434V647iSharesGlobalREITETFCTIMember" order="15.0" priority="1"/></link:definitionLink><link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link"><link:loc xlink:type="locator" xlink:href="#nlvt_C000097933Member" xlink:label="C000097933Member"/><link:label xlink:type="resource" xlink:label="label_C000097933Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000097933</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000097933Member" xlink:to="label_C000097933Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097932Member" xlink:label="C000097932Member"/><link:label xlink:type="resource" xlink:label="label_C000097932Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000097932</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000097932Member" xlink:to="label_C000097932Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112453Member" xlink:label="C000112453Member"/><link:label xlink:type="resource" xlink:label="label_C000112453Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000112453</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000112453Member" xlink:to="label_C000112453Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112454Member" xlink:label="C000112454Member"/><link:label xlink:type="resource" xlink:label="label_C000112454Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000112454</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000112454Member" xlink:to="label_C000112454Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158840Member" xlink:label="C000158840Member"/><link:label xlink:type="resource" xlink:label="label_C000158840Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000158840</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000158840Member" xlink:to="label_C000158840Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097936Member" xlink:label="C000097936Member"/><link:label xlink:type="resource" xlink:label="label_C000097936Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000097936</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000097936Member" xlink:to="label_C000097936Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097937Member" xlink:label="C000097937Member"/><link:label xlink:type="resource" xlink:label="label_C000097937Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000097937</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000097937Member" xlink:to="label_C000097937Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112457Member" xlink:label="C000112457Member"/><link:label xlink:type="resource" xlink:label="label_C000112457Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000112457</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000112457Member" xlink:to="label_C000112457Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112458Member" xlink:label="C000112458Member"/><link:label xlink:type="resource" xlink:label="label_C000112458Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000112458</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000112458Member" xlink:to="label_C000112458Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158842Member" xlink:label="C000158842Member"/><link:label xlink:type="resource" xlink:label="label_C000158842Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000158842</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000158842Member" xlink:to="label_C000158842Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097934Member" xlink:label="C000097934Member"/><link:label xlink:type="resource" xlink:label="label_C000097934Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000097934</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000097934Member" xlink:to="label_C000097934Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000097935Member" xlink:label="C000097935Member"/><link:label xlink:type="resource" xlink:label="label_C000097935Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000097935</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000097935Member" xlink:to="label_C000097935Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112455Member" xlink:label="C000112455Member"/><link:label xlink:type="resource" xlink:label="label_C000112455Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000112455</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000112455Member" xlink:to="label_C000112455Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000112456Member" xlink:label="C000112456Member"/><link:label xlink:type="resource" xlink:label="label_C000112456Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000112456</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000112456Member" xlink:to="label_C000112456Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_C000158841Member" xlink:label="C000158841Member"/><link:label xlink:type="resource" xlink:label="label_C000158841Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000158841</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000158841Member" xlink:to="label_C000158841Member" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3033BroadBasedIndexMember" xlink:label="SP500IndexTR3033BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3033BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3033BroadBasedIndexMember" xlink:to="label_SP500IndexTR3033BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3033BroadBasedIndexMember_3033" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3033</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3033BroadBasedIndexMember" xlink:to="label_SP500IndexTR3033BroadBasedIndexMember_3033" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3034BroadBasedIndexMember" xlink:label="SP500IndexTR3034BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3034BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3034BroadBasedIndexMember" xlink:to="label_SP500IndexTR3034BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3034BroadBasedIndexMember_3034" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3034</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3034BroadBasedIndexMember" xlink:to="label_SP500IndexTR3034BroadBasedIndexMember_3034" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3095BroadBasedIndexMember" xlink:label="SP500IndexTR3095BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3095BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3095BroadBasedIndexMember" xlink:to="label_SP500IndexTR3095BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3095BroadBasedIndexMember_3095" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3095</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3095BroadBasedIndexMember" xlink:to="label_SP500IndexTR3095BroadBasedIndexMember_3095" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3096BroadBasedIndexMember" xlink:label="SP500IndexTR3096BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3096BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3096BroadBasedIndexMember" xlink:to="label_SP500IndexTR3096BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3096BroadBasedIndexMember_3096" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3096</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3096BroadBasedIndexMember" xlink:to="label_SP500IndexTR3096BroadBasedIndexMember_3096" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2630BroadBasedIndexMember" xlink:label="SP500IndexTR2630BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR2630BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR2630BroadBasedIndexMember" xlink:to="label_SP500IndexTR2630BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR2630BroadBasedIndexMember_2630" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_2630</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR2630BroadBasedIndexMember" xlink:to="label_SP500IndexTR2630BroadBasedIndexMember_2630" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3037BroadBasedIndexMember" xlink:label="SP500IndexTR3037BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3037BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3037BroadBasedIndexMember" xlink:to="label_SP500IndexTR3037BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3037BroadBasedIndexMember_3037" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3037</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3037BroadBasedIndexMember" xlink:to="label_SP500IndexTR3037BroadBasedIndexMember_3037" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3038BroadBasedIndexMember" xlink:label="SP500IndexTR3038BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3038BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3038BroadBasedIndexMember" xlink:to="label_SP500IndexTR3038BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3038BroadBasedIndexMember_3038" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3038</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3038BroadBasedIndexMember" xlink:to="label_SP500IndexTR3038BroadBasedIndexMember_3038" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3099BroadBasedIndexMember" xlink:label="SP500IndexTR3099BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3099BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3099BroadBasedIndexMember" xlink:to="label_SP500IndexTR3099BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3099BroadBasedIndexMember_3099" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3099</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3099BroadBasedIndexMember" xlink:to="label_SP500IndexTR3099BroadBasedIndexMember_3099" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3100BroadBasedIndexMember" xlink:label="SP500IndexTR3100BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3100BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3100BroadBasedIndexMember" xlink:to="label_SP500IndexTR3100BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3100BroadBasedIndexMember_3100" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3100</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3100BroadBasedIndexMember" xlink:to="label_SP500IndexTR3100BroadBasedIndexMember_3100" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2632BroadBasedIndexMember" xlink:label="SP500IndexTR2632BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR2632BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR2632BroadBasedIndexMember" xlink:to="label_SP500IndexTR2632BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR2632BroadBasedIndexMember_2632" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_2632</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR2632BroadBasedIndexMember" xlink:to="label_SP500IndexTR2632BroadBasedIndexMember_2632" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3035BroadBasedIndexMember" xlink:label="SP500IndexTR3035BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3035BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3035BroadBasedIndexMember" xlink:to="label_SP500IndexTR3035BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3035BroadBasedIndexMember_3035" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3035</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3035BroadBasedIndexMember" xlink:to="label_SP500IndexTR3035BroadBasedIndexMember_3035" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3036BroadBasedIndexMember" xlink:label="SP500IndexTR3036BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3036BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3036BroadBasedIndexMember" xlink:to="label_SP500IndexTR3036BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3036BroadBasedIndexMember_3036" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3036</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3036BroadBasedIndexMember" xlink:to="label_SP500IndexTR3036BroadBasedIndexMember_3036" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3097BroadBasedIndexMember" xlink:label="SP500IndexTR3097BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3097BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3097BroadBasedIndexMember" xlink:to="label_SP500IndexTR3097BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3097BroadBasedIndexMember_3097" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3097</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3097BroadBasedIndexMember" xlink:to="label_SP500IndexTR3097BroadBasedIndexMember_3097" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR3098BroadBasedIndexMember" xlink:label="SP500IndexTR3098BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3098BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3098BroadBasedIndexMember" xlink:to="label_SP500IndexTR3098BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR3098BroadBasedIndexMember_3098" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_3098</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR3098BroadBasedIndexMember" xlink:to="label_SP500IndexTR3098BroadBasedIndexMember_3098" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_SP500IndexTR2631BroadBasedIndexMember" xlink:label="SP500IndexTR2631BroadBasedIndexMember"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR2631BroadBasedIndexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">S&amp;P 500 Index TR</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR2631BroadBasedIndexMember" xlink:to="label_SP500IndexTR2631BroadBasedIndexMember" priority="1"/><link:label xlink:type="resource" xlink:label="label_SP500IndexTR2631BroadBasedIndexMember_2631" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">S&amp;P 500 Index TR_2631</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SP500IndexTR2631BroadBasedIndexMember" xlink:to="label_SP500IndexTR2631BroadBasedIndexMember_2631" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_Equities46434V290SectorMember" xlink:label="Equities46434V290SectorMember"/><link:label xlink:type="resource" xlink:label="label_Equities46434V290SectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Equities46434V290</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Equities46434V290SectorMember" xlink:to="label_Equities46434V290SectorMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_CashEquivalent825252885SectorMember" xlink:label="CashEquivalent825252885SectorMember"/><link:label xlink:type="resource" xlink:label="label_CashEquivalent825252885SectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Cash &amp; Equivalent825252885</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashEquivalent825252885SectorMember" xlink:to="label_CashEquivalent825252885SectorMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_MoneyMarketSectorMember" xlink:label="MoneyMarketSectorMember"/><link:label xlink:type="resource" xlink:label="label_MoneyMarketSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Money Market</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MoneyMarketSectorMember" xlink:to="label_MoneyMarketSectorMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_FixedIncomeSectorMember" xlink:label="FixedIncomeSectorMember"/><link:label xlink:type="resource" xlink:label="label_FixedIncomeSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Fixed Income</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FixedIncomeSectorMember" xlink:to="label_FixedIncomeSectorMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_EquitySectorMember" xlink:label="EquitySectorMember"/><link:label xlink:type="resource" xlink:label="label_EquitySectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Equity</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EquitySectorMember" xlink:to="label_EquitySectorMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_CollateralforSecuritiesLoanedSectorMember" xlink:label="CollateralforSecuritiesLoanedSectorMember"/><link:label xlink:type="resource" xlink:label="label_CollateralforSecuritiesLoanedSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Collateral for Securities Loaned</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CollateralforSecuritiesLoanedSectorMember" xlink:to="label_CollateralforSecuritiesLoanedSectorMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" xlink:label="A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">922020805 | Vanguard Short-Term Inflation-Protected Securities ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" xlink:to="label_A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A922908363VanguardSP500ETFCTIMember" xlink:label="A922908363VanguardSP500ETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A922908363VanguardSP500ETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">922908363 | Vanguard S&amp;P 500 ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A922908363VanguardSP500ETFCTIMember" xlink:to="label_A922908363VanguardSP500ETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A921943858VanguardFTSEDevelopedMarketsETFCTIMember" xlink:label="A921943858VanguardFTSEDevelopedMarketsETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A921943858VanguardFTSEDevelopedMarketsETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">921943858 | Vanguard FTSE Developed Markets ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A921943858VanguardFTSEDevelopedMarketsETFCTIMember" xlink:to="label_A921943858VanguardFTSEDevelopedMarketsETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" xlink:label="A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">78464A474 | State Street SPDR Portfolio Short Term Corporate Bond ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" xlink:to="label_A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" xlink:label="A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">464287242 | iShares iBoxx $ Investment Grade Corporate Bond ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" xlink:to="label_A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" xlink:label="A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">78464A508 | State Street SPDR Portfolio S&amp;P 500 Value ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" xlink:to="label_A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" xlink:label="A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">78464A847 | State Street SPDR Portfolio S&amp;P 400 Mid Cap ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" xlink:to="label_A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" xlink:label="A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">92206C706 | Vanguard Intermediate-Term Treasury ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" xlink:to="label_A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" xlink:label="A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">78468R853 | State Street SPDR Portfolio S&amp;P 600 Small Cap ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" xlink:to="label_A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A92206C102VanguardShortMinusTermTreasuryETFCTIMember" xlink:label="A92206C102VanguardShortMinusTermTreasuryETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A92206C102VanguardShortMinusTermTreasuryETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">92206C102 | Vanguard Short-Term Treasury ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A92206C102VanguardShortMinusTermTreasuryETFCTIMember" xlink:to="label_A92206C102VanguardShortMinusTermTreasuryETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" xlink:label="A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">78464A409 | State Street SPDR Portfolio S&amp;P 500 Growth ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" xlink:to="label_A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" xlink:label="A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">46434G764 | iShares MSCI Emerging Markets ex China ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" xlink:to="label_A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A922042858VanguardFTSEEmergingMarketsETFCTIMember" xlink:label="A922042858VanguardFTSEEmergingMarketsETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A922042858VanguardFTSEEmergingMarketsETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">922042858 | Vanguard FTSE Emerging Markets ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A922042858VanguardFTSEEmergingMarketsETFCTIMember" xlink:to="label_A922042858VanguardFTSEEmergingMarketsETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" xlink:label="A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember"/><link:label xlink:type="resource" xlink:label="label_A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">33939L407 | FlexShares Global Upstream Natural Resources Index Fund</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" xlink:to="label_A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="#nlvt_A46434V647iSharesGlobalREITETFCTIMember" xlink:label="A46434V647iSharesGlobalREITETFCTIMember"/><link:label xlink:type="resource" xlink:label="label_A46434V647iSharesGlobalREITETFCTIMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">46434V647 | iShares Global REIT ETF</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="A46434V647iSharesGlobalREITETFCTIMember" xlink:to="label_A46434V647iSharesGlobalREITETFCTIMember" priority="1"/><link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_NoTradingSymbolFlag" xlink:label="NoTradingSymbolFlag"/><link:label xlink:type="resource" xlink:label="label_NoTradingSymbolFlag" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">No Trading Symbol [Flag]</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoTradingSymbolFlag" xlink:to="label_NoTradingSymbolFlag" priority="1"/><link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsNet" xlink:label="AssetsNet"/><link:label xlink:type="resource" xlink:label="label_AssetsNet" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">AssetsNet</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsNet" xlink:to="label_AssetsNet" priority="1"/><link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyPortfolioTurnover" xlink:label="InvestmentCompanyPortfolioTurnover"/><link:label xlink:type="resource" xlink:label="label_InvestmentCompanyPortfolioTurnover" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">InvestmentCompanyPortfolioTurnover</link:label><link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentCompanyPortfolioTurnover" xlink:to="label_InvestmentCompanyPortfolioTurnover" priority="1"/></link:labelLink></link:linkbase></appinfo></annotation><element name="C000097933Member" id="nlvt_C000097933Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000097932Member" id="nlvt_C000097932Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000112453Member" id="nlvt_C000112453Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000112454Member" id="nlvt_C000112454Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000158840Member" id="nlvt_C000158840Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000097936Member" id="nlvt_C000097936Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000097937Member" id="nlvt_C000097937Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000112457Member" id="nlvt_C000112457Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000112458Member" id="nlvt_C000112458Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000158842Member" id="nlvt_C000158842Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000097934Member" id="nlvt_C000097934Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000097935Member" id="nlvt_C000097935Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000112455Member" id="nlvt_C000112455Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000112456Member" id="nlvt_C000112456Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="C000158841Member" id="nlvt_C000158841Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3033BroadBasedIndexMember" id="nlvt_SP500IndexTR3033BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3034BroadBasedIndexMember" id="nlvt_SP500IndexTR3034BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3095BroadBasedIndexMember" id="nlvt_SP500IndexTR3095BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3096BroadBasedIndexMember" id="nlvt_SP500IndexTR3096BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR2630BroadBasedIndexMember" id="nlvt_SP500IndexTR2630BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3037BroadBasedIndexMember" id="nlvt_SP500IndexTR3037BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3038BroadBasedIndexMember" id="nlvt_SP500IndexTR3038BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3099BroadBasedIndexMember" id="nlvt_SP500IndexTR3099BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3100BroadBasedIndexMember" id="nlvt_SP500IndexTR3100BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR2632BroadBasedIndexMember" id="nlvt_SP500IndexTR2632BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3035BroadBasedIndexMember" id="nlvt_SP500IndexTR3035BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3036BroadBasedIndexMember" id="nlvt_SP500IndexTR3036BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3097BroadBasedIndexMember" id="nlvt_SP500IndexTR3097BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR3098BroadBasedIndexMember" id="nlvt_SP500IndexTR3098BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="SP500IndexTR2631BroadBasedIndexMember" id="nlvt_SP500IndexTR2631BroadBasedIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="Equities46434V290SectorMember" id="nlvt_Equities46434V290SectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="CashEquivalent825252885SectorMember" id="nlvt_CashEquivalent825252885SectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="MoneyMarketSectorMember" id="nlvt_MoneyMarketSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="FixedIncomeSectorMember" id="nlvt_FixedIncomeSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="EquitySectorMember" id="nlvt_EquitySectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="CollateralforSecuritiesLoanedSectorMember" id="nlvt_CollateralforSecuritiesLoanedSectorMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" id="nlvt_A922020805VanguardShortMinusTermInflationMinusProtectedSecuritiesETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A922908363VanguardSP500ETFCTIMember" id="nlvt_A922908363VanguardSP500ETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A921943858VanguardFTSEDevelopedMarketsETFCTIMember" id="nlvt_A921943858VanguardFTSEDevelopedMarketsETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" id="nlvt_A78464A474StateStreetSPDRPortfolioShortTermCorporateBondETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" id="nlvt_A464287242iSharesiBoxxInvestmentGradeCorporateBondETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" id="nlvt_A78464A508StateStreetSPDRPortfolioSP500ValueETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" id="nlvt_A78464A847StateStreetSPDRPortfolioSP400MidCapETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" id="nlvt_A92206C706VanguardIntermediateMinusTermTreasuryETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" id="nlvt_A78468R853StateStreetSPDRPortfolioSP600SmallCapETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A92206C102VanguardShortMinusTermTreasuryETFCTIMember" id="nlvt_A92206C102VanguardShortMinusTermTreasuryETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" id="nlvt_A78464A409StateStreetSPDRPortfolioSP500GrowthETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" id="nlvt_A46434G764iSharesMSCIEmergingMarketsexChinaETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A922042858VanguardFTSEEmergingMarketsETFCTIMember" id="nlvt_A922042858VanguardFTSEEmergingMarketsETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" id="nlvt_A33939L407FlexSharesGlobalUpstreamNaturalResourcesIndexFundCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/><element name="A46434V647iSharesGlobalREITETFCTIMember" id="nlvt_A46434V647iSharesGlobalREITETFCTIMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/></schema>
