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- Code of Federal Regulations
- C.F.R. 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
40 C.F.R. § 81.427
South Dakota.
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Source: 44 FR 69124, Nov. 30, 1979, unless otherwise noted.
Table of Contents
Subpart D—Identification of Mandatory Class I Federal Areas Where Visibility Is an Important Value
- §81.400 Scope.
- §81.401 Alabama.
- §81.402 Alaska.
- §81.403 Arizona.
- §81.404 Arkansas.
- §81.405 California.
- §81.406 Colorado.
- §81.407 Florida.
- §81.408 Georgia.
- §81.409 Hawaii.
- §81.410 Idaho.
- §81.411 Kentucky.
- §81.412 Louisiana.
- §81.413 Maine.
- §81.414 Michigan.
- §81.415 Minnesota.
- §81.416 Missouri.
- §81.417 Montana.
- §81.418 Nevada.
- §81.419 New Hampshire.
- §81.420 New Jersey.
- §81.421 New Mexico.
- §81.422 North Carolina.
- §81.423 North Dakota.
- §81.424 Oklahoma.
- §81.425 Oregon.
- §81.426 South Carolina.
- §81.427 South Dakota.
- §81.428 Tennessee.
- §81.429 Texas.
- §81.430 Utah.
- §81.431 Vermont.
- §81.432 Virgin Islands.
- §81.433 Virginia.
- §81.434 Washington.
- §81.435 West Virginia.
- §81.436 Wyoming.
- §81.437 New Brunswick, Canada.