Regulations last checked for updates: May 17, 2024

Title 40 - Protection of Environment last revised: May 15, 2024
All TitlesTitle 40Chapter IPart 81Subpart D - Subpart D—Identification of Mandatory Class I Federal Areas Where Visibility Is an Important Value
View all text of Subpart D [§ 81.400 - § 81.437]
§ 81.424 - Oklahoma.
Area name Acreage Public Law establishing Federal land manager
Wichita Mountains Wild8,90091-504USDI-FWS
authority: 42 U.S.C. 7401,
source: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 81.424
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