StacksVerified U.S. regulatory reference

40 CFR §52.1387

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)The requirements of section 169A of the Clean Air Act are not met because the plan does not include approvable procedures for protection of visibility in mandatory Class I Federal areas.
  2. (b)[Reserved]
  3. (c)Montana's November 7, 2017 Progress Report meets the applicable regional haze requirements set forth in § 51.308(g) and (h).