U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 74Subpart C - Subpart C—Allowance Calculations for Combustion Sources
§ 74.20 -
§ 74.22 - Actual SO2 emissions rate.
§ 74.23 - 1985 Allowable SO2 emissions rate.
§ 74.24 - Current allowable SO2 emissions rate.
§ 74.25 - Current promulgated SO2 emissions limit.
§ 74.26 - Allocation formula.
§ 74.28 - Allowance allocation for combustion sources becoming opt-in sources on a date other than January 1.
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