40 CFR 52.1934: Prevention of air pollution emergency episodes.

(a) The plan originally submitted by the Governor of Oklahoma on January 28, 1972, as Chapter six, was revised for particulate matter and submitted for parallel processing by the Episode Control Plan for the State of Oklahoma” § 2.2 and § 3.2 table II as adopted September 6, 1988, by the Oklahoma Air Quality Council are approved as meeting the requirements of section 110 of the Clean Air Act and 40 CFR part 51 subpart H.