The Federal CAIR SO2 Trading Program provisions of part 97 of this chapter constitute the Clean Air Interstate Rule Federal Implementation Plan provisions for emissions of sulfur dioxide (SO2). These provisions apply to sources in each State that is described in § 51.124(c) of this chapter, Delaware, and New Jersey, each of which States is subject to an EPA finding that the State failed to submit a State Implementation Plan (SIP) to satisfy the requirements of section 110(a)(2)(D)(I) of the Clean Air Act for the PM2.5 NAAQS. These provisions do not invalidate or otherwise affect the obligations of States, emissions sources, or other responsible entities with respect to all portions of plans approved or promulgated under this part, nor the obligations of States under the requirements of §§ 51.124 and 51.125 of this chapter.