40 CFR — Protection of Environment
Appendix C to Part 72—Actual 1985 Yearly SO
United States · 40 CFR — Protection of Environment · Status: effective
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- Citation
- 40 CFR — Protection of Environment, Appendix C to Part 72—Actual 1985 Yearly SO, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/178540
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Full text
The equation used to calculate the yearly SO2 emissions (SO2) is as follows:
If gas is the only fuel, gas emissions are defaulted to 0.
Each fuel type SO2 emissions is calculated on a yearly basis, using the equation:
For coal, the yearly fuel burned is in tons/yr and the AP-42 factor (which accounts for the ash retention of sulfur in coal), in lbs SO2 ton coal, is by coal type:
For oil, the yearly fuel burned is in gal/yr. If it is in bbl/yr, convert using 42 gal/bbl oil. The AP-42 factor (which accounts for the oil density), in lbs SO2/thousand gal oil, is by oil type:
For all fuel, the units conversion factor is 1 ton/2000 lbs.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.