(a) The ambient air standard for carbon monoxide, measured by nondispersive infrared spectrometry, as described in 40 CFR part 50, Appendix C, or by an equivalent method designated in accordance with 40 CFR part 53, is:
020-2 Wyo. Code R. § 2-5
Amended, Eff. 10/13/2015.
Amended, Eff. 12/20/2016.
Amended, Eff. 2/5/2018.