Purpose.

This subpart sets forth the general, designated representative, allowance, and monitoring provisions for the Cross-State Air Pollution Rule (CSAPR) SO 2 Group 2 Trading Program, under section 110 of the Clean Air Act and § 52.39 of this chapter, as a means of mitigating interstate transport of fine particulates and sulfur dioxide. [76 FR 48458, Aug. 8, 2011, as amended at 81 FR 74618, Oct. 26, 2016]