Every Clean Air Act-regulated stationary source in the US — 279,533 facilities + 105,303 formal enforcement actions. Per facility: PGM_SYS_ID, EPA Registry ID (joins facilities), name, full address, EPA region, SIC + NAICS, facility type, air pollutant class, operating status, High Priority Violator (HPV) flag, local control region. Per enforcement action: PGM_SYS_ID, activity ID, agency type (Federal vs State), enforcement type, settlement date, penalty amount.
The listed URL identifies a referenced source; it does not by itself document the ingestion endpoint. Referenced source URL: https://echo.epa.gov/tools/data-downloads. Source-specific terms apply. US federal employee-authored works are generally public domain under 17 USC 105; non-federal and third-party material retains source terms. Free or keyless access does not alter source terms. Metadata and normalization authored by MORVS (AI Analytics LLC) are CC0 only where expressly stated.