[43 FR 8964, Mar. 3, 1978, as amended at 44 FR 16393, Mar. 19, 1979; 47 FR 28626, July 1, 1982; 56 FR 56854, Nov. 6, 1991; 63 FR 31094, June 5, 1998] 190-147 D-00--11 Does not meet primary standards Cannot be classified or better than national standards X [44 FR 5131, Jan. 25, 1979, as amended at 47 FR 31878, July 23, 1982; 48 FR 41409, Sept. 15, 1983; 52 FR 7866, Mar. 13, 1987; 56 FR 56855, Nov. 6, 1991; 57 FR 56779, Nov. 30, 1992; 60 FR 55798, Nov. 3, 1995; 61 FR 2941, Jan. 30, 1996; 63 FR 31095, June 5, 1998] [44 FR 5133, Jan. 25, 1979, as amended at 47 FR 31878, July 23, 1982; 56 FR 56858, Nov. 6, 1991; 61 FR 2941, Jan. 30, 1996; 63 FR 31096, June 5, 1998] Subpart D-Identification of Mandatory Class I Federal Areas Where Visibility Is an Important Value AUTHORITY: Secs. 101(b)(1), 110, 169A(a)(2), and 301(a), Clean Air Act as amended (42 U.S.C. 7401(b), 7410, 7491(a)(2), 7601(a)). SOURCE: 44 FR 69124, Nov. 30, 1979, unless otherwise noted. §81.400 Scope. Subpart D, §§ 81.401 through 81.437, lists those mandatory Federal Class I areas, established under the Clean Air Act Amendments of 1977, where the Administrator, in consultation with the Secretary of the Interior, has determined visibility to be an important value. The following listing of areas where visibility is an important value represents an evaluation of all international parks (IP), national wilderness areas (Wild) exceeding 5,000 acres, |