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 Value81.43240 C.F.R. § 81.432Virgin Islands.Last amended: 2016Year: 2026Length: 15 wordsOfficial source Cite as 40 C.F.R. § 81.432 (2026)Area name Acreage Public Law establishing Federal land manager Virgin Islands NP 12,295 84-925 USDI-NPSPrevious40 C.F.R. § 81.431Next40 C.F.R. § 81.433