CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS > SUBPART WW—Washington (§52.2470 to §52.2499) > 52.2497—Significant deterioration of air quality.

52.2497—Significant deterioration of air quality.

(a) The requirements of sections 160 through 165 of the Clean Air Act are not met, since the plan does not include approvable procedures for preventing the significant deterioration of air quality.
(b) Regulations for preventing significant deterioration of air quality. The provisions of § 52.21 except paragraph (a)(1) are hereby incorporated and made a part of the applicable State plan for the State of Washington.
(c) In accordance with section 164 of the Clean Air Act and the provisions of 40 CFR 52.21(g), the Spokane Indian Reservation is designated as a Class I area for the purposes of preventing significant deterioration of air quality.

Code of Federal Regulations

[43 FR 26410, June 19, 1978, as amended at 45 FR 52741, Aug. 7, 1980; 56 FR 14862, Apr. 12, 1991; 68 FR 11324, Mar. 10, 2003; 68 FR 74490, Dec. 24, 2003]