US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 81 — DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSESSubpart D — Identification of Mandatory Class I Federal Areas Where Visibility Is an Important Value81.41240 C.F.R. § 81.412Louisiana.Last amended: 2016Year: 2026Length: 14 wordsOfficial source Cite as 40 C.F.R. § 81.412 (2026)Area name Acreage Public Law establishing Federal land manager Breton Wild 5,000+ 93-632 USDI-FWSPrevious40 C.F.R. § 81.411Next40 C.F.R. § 81.413