Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. of
Sub-Agency 0002 - Air Quality
Chapter 3 - General Emission Standards
Section 3-3 - Emission Standards for Nitrogen Oxides
Universal Citation: WY Code of Rules 3-3
Current through September 21, 2024
(a) The emission standards for nitrogen oxides, measured in accordance with Method 7 of 40 CFR Part 60, Appendix A-4, or by an equivalent method are:
(i) The emission of nitrogen oxides from new
gas fired fuel burning equipment calculated as nitrogen dioxide shall be
limited to 0.20 pound per million Btu (0.36 grams per million gram calories) of
heat input.
(ii) The emission of
nitrogen oxides from existing gas fired fuel burning equipment calculated as
nitrogen dioxide shall be limited to 0.23 pound per million Btu (0.41 grams per
million gram calories) of heat input.
(iii) The emission of nitrogen oxides from
new oil fired fuel burning equipment calculated as nitrogen dioxide shall be
limited to 0.30 pounds per million Btu (0.54 grams per million gram calories)
of heat input for units having a heat input of 1.0 million Btu per hour (250
million gram calories/hour) or greater and 0.60 pounds per million Btu (1.08
grams per million gram calories) of heat input for units having a heat input
less than 1.0 million Btu per hour (250 million gram calories/hour).
(iv) The emission of nitrogen oxides from
existing oil fired fuel burning equipment calculated as nitrogen dioxide shall
be limited to 0.46 pound per million Btu (0.83 grams per million gram calories)
of heat input for units having a heat input of 250 million Btu per hour (62.5
billion gram calories/hour) or greater and 0.60 pound per million Btu (1.08
grams per million gram calories) of heat input for units having a heat input
less than 250 million Btu per hour (62.5 billion gram calories/hour).
(v) The emission of nitrogen oxides from new
nitric acid manufacturing plants, calculated as nitrogen dioxide shall be
limited to 3 pounds per ton (1.5 kilograms per metric ton) of acid produced,
maximum 2-hour average.
(vi) The
emission of nitrogen oxides from new solid fossil fuel (except lignite) fired
fuel burning equipment calculated as nitrogen dioxide shall be limited to 0.70
pounds per million Btu (1.26 grams per million gram calories) heat
input.
(vii) The emission of
nitrogen oxides from existing solid fossil fuel (except lignite) fired fuel
burning equipment calculated as nitrogen dioxide shall be limited to 0.75
pounds per million Btu (1.35 grams per million gram calories) heat
input.
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