§81.121. Four Corners Interstate Air Quality Control Region.
40 C.F.R. § 81.121
The Four Corners Interstate Air Quality Control Region (Colorado-New Mexico-Utah) has been revised to consist of the territorial area encompassed by the boundaries of the following jurisdictions or described area (including the territorial area of all municipalities (as defined in section 302(f) of the Clean Air Act, 42 U.S.C. 1857h(f)) geographically located within the outermost boundaries of the area so delimited):
Notes, amendments, and revision history
Amendments
[45 FR 67347, Oct. 10, 1980]
Authority
Authority: 42 U.S.C. 7401, et seq.
Source
Source: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.
Amendments
[45 FR 67347, Oct. 10, 1980]