A Address ID U.S. Census Bureau C COM_ID (10-digit Common Identifer that uniquely identifies the occurrence of each feature in the National Hydrography Dataset) U.S. Census Bureau D DAAL ID U.S. Census Bureau DSF DSF ID U.S. Census Bureau F FRA_ID (Federal Rail Administration Identifier) U.S. Census Bureau G Local GIS ID U.S. Census Bureau L Federal LRS_ID (Linear Referencing System Identifier used by the Federal Highway Administration) U.S. Census Bureau O Other LRS_ID (Linear Referencing System Identifier other than that used by the Federal Highway Administration) U.S. Census Bureau