(a)Purpose of section. Sections 35.570 through 35.578 govern air pollution control grants to Tribes (as defined in section 302(r) of the Clean Air Act (CAA)) authorized under sections 105 and 301(d) of the Act and Intertribal Consortia.(b)Purpose of program. Air pollution control grants are awarded to develop and administer programs that prevent and control air pollution or implement national air quality standards for air resources within the exterior boundaries of the reservation or other areas within the Tribe's jurisdiction.(c)Associated program regulations. Refer to 40 CFR parts 49, 50, 51, 52, 58, 60, 61, 62, and 81 for associated program regulations.