40 C.F.R. § 51.25
What geographic area must my state's inventory cover?
Cite as 40 C.F.R. § 51.25 (2026)
Because of the regional nature of these pollutants, your state's inventory must be statewide, regardless of any area's attainment status.
40 C.F.R. § 51.25
Cite as 40 C.F.R. § 51.25 (2026)