40 C.F.R. § 81.455
Scope.
Cite as 40 C.F.R. § 81.455 (2026)
This subpart identifies interstate transport regions established for national ambient air quality standards pursuant to section 184 or section 176A of the Clean Air Act.
40 C.F.R. § 81.455
Cite as 40 C.F.R. § 81.455 (2026)