20260821 18370000 1.0 TRUE DataWarehouse.SDEADMIN.Subregion_boundary_scag This file contains the official subregional boundaries for the SCAG region. The file has been updated as of 08/13 to incorporate changes in WRCOG and CVAG in County of Riverside. All subregional boundaries are consistent with the 2012 city boundaries whenever they overlap. Southern California Association of Governments