(1) For the purposes of this subchapter, the department adopts and incorporates by reference the following:

(a) 40 CFR 51.102, pertaining to requirements for public hearings for state programs;

(b) 40 CFR Part 51, Appendix W, pertaining to the Guideline on Air Quality Models, as published January 17, 2017, and effective May 22, 2017;

(c) 40 CFR Part 60, pertaining to standards of performance for new stationary sources;

(d) 40 CFR Part 61, pertaining to emission standards for hazardous air pollutants;

(e) 40 CFR 81.327, pertaining to the air quality attainment status designations for Montana; and

(f) the Standard Industrial Classification Manual (1987), Office of Management and Budget (PB 87-100012), pertaining to a system of industrial classification and definition based upon the composition and structure of the economy.

(2) Copies of materials incorporated by reference in this subchapter may be obtained as referenced in ARM 17.8.102(3) and (4).