U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
Because of the regional nature of these pollutants, your state's inventory must be statewide, regardless of any area's attainment status.
Regulations most recently checked for updates: Aug 27, 2025
Because of the regional nature of these pollutants, your state's inventory must be statewide, regardless of any area's attainment status.