Allotment.

(a) The Administrator allots air pollution control funds under section 105 of the Clean Air Act based on a number of factors, including: (1) Population; (2) The extent of actual or potential air pollution problems; and (3) The financial need of each agency. (b) The Regional Administrator shall allot to a State not less than one-half of one percent nor more than 10 percent of the annual section 105 grant appropriation. (c) The Administrator may award funds on a competitive basis.