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.
Every record in this dataset can be traced back to its primary source at https://echo.epa.gov/tools/data-downloads. Underlying content is a US federal government work (public domain under 17 USC §105); our derived data is licensed CC0 1.0.