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          FRANKLIN MUNICIPAL SECURITIES TRUST
          
            One Franklin Parkway
            San Mateo
            CA
            X1
            94403-1906
          
        
        
          
            true
          
        
        
          811-06481
          
            
              033-44132
            
          
        
        
          02/28/2022
          false
        
        
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          344.92
        
        
          Jeffrey W. White
          Jeffrey W. White, Assistant Treasurer
          05/23/2022