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Electronic Code of Federal Regulations (e-CFR)
Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER C—AIR PROGRAMS
PART 81—DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES
Subpart D—Identification of Mandatory Class I Federal Areas Where Visibility Is an Important Value
§ 81.427 South Dakota.
40 CFR § 81.427 - South Dakota.
CFR
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§ 81.427 South Dakota.
Area name
Acreage
Public Law establishing
Federal land manager
Badlands Wild
64,250
94–567
USDI-NPS
Wind Cave NP
28,060
57–16
USDI-NPS
