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

   1. (a) The Montana Ambient Air Monitoring Program Quality Assurance Project Plan (2023), a department manual that specifies ambient air sampling and data collection, recording, analysis, and transmittal requirements that pertain only to the department's monitoring program;
   2. (b) 40 CFR Part 50, specifying the national ambient air quality standards and ambient air quality monitoring reference methods;
   3. (c) 40 CFR Part 53, specifying ambient air monitoring reference methods and equivalent methods; and
   4. (d) 40 CFR Part 58, specifying criteria and requirements for ambient air quality monitoring and reporting.
2. (2) Copies of materials incorporated by reference in this subchapter may be obtained as referenced in ARM 17.8.102(3) and (4).

Authorizing statute(s): 75-2-112, 75-2-203, MCA

Implementing statute(s): 75-2-203, MCA

History: NEW, 1996 MAR p. 1844, Eff. 7/4/96; TRANS, from DHES, 1996 MAR p. 2285; AMD, 1997 MAR p. 1581, Eff. 9/9/97; AMD, 1999 MAR p. 2250, Eff. 10/8/99; AMD, 2005 MAR p. 959, Eff. 6/17/05; AMD, 2007 MAR p. 1663, Eff. 10/26/07; AMD, 2015 MAR p. 370, Eff. 4/17/15; AMD, 2018 MAR p. 438, Eff. 2/24/18; AMD, 2023 MAR p. 1863, Eff. 12/23/23; AMD, 2024 MAR p. 2056, Eff. 8/24/24.