40 CFR § 20.2 - Definitions.
As used in this part, the following terms shall have the meaning indicated below:
(a) Act means, when used in connection with water pollution control facilities, the Federal Water Pollution Control Act, as amended (33 U.S.C. 1251 et seq.) or, when used in connection with air pollution control facilities, the Clean Air Act, as amended (42 U.S.C. 1857 et seq.).
(b) State certifying authority means:
(2) For air pollution control facilities, the air pollution control agency designated pursuant to section 302(b)(1) of the Act; or
(c) Applicant means any person who files an application with the Administrator for certification that a facility is in compliance with the applicable regulations of Federal agencies and in furtherance of the general policies of the United States for cooperation with the States in the prevention and abatement of water or air pollution under the Act.
(d) Administrator means the Administrator, Environmental Protection Agency.
(e) Regional Administrator means the Regional designee appointed by the Administrator to certify facilities under this part.
(g) State means the States, the District of Columbia, the Commonwealth of Puerto Rico, the Canal Zone, Guam, American Samoa, the Virgin Islands, and the Trust Territory of the Pacific Islands.