Description: ENVIRONMENTAL SEWER INSPECTION PERMIT INSPECTION ZONES BY ZIPCODEThe boundaries shown are for Environmental Sewer Inspection Zones based on Census Bureau statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement.All legal boundaries and names are as of January 1, 2020. Released February 2, 2021.The 2020 ZIP Code Tabulation Areas (ZCTAs) (5-digit) were delineated using 2020 Blocks and have been added to this product.The county-level Topological Faces (Polygons With All Geocodes) have been updated with a new ZCTA520 field containing the GEOCODE for the 2020 ZTCAs. Released August 6, 2021.