The requirements of sections 160 through 165 of the Clean Air Act are met except as noted in paragraphs (a) and (b) of this section. The EPA is retaining § 52.21 except paragraph (a)(1) as part of the Nebraska SIP for the following types of sources:
(a) Sources proposing to construct on Indian lands in Nebraska; and,
(b) Enforcement of permits issued by EPA prior to the July 28, 1983, delegation of authority to Nebraska.
[49 FR 29599, July 23, 1984, as amended at 68 FR 11323, Mar. 10, 2003; 68 FR 74489, Dec. 24, 2003]