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Regulations last checked for updates: Oct 15, 2026
Title 40 - Protection of Environment last revised: Oct 13, 2026
All Titles
Title 40
Chapter I
Part 74 - PART 74—SULFUR DIOXIDE OPT-INS
Subpart A [§ 74.1 - § 74.4] - Subpart A—Background and Summary
Subpart B [§ 74.10 - § 74.19] - Subpart B—Permitting Procedures
Subpart C [§ 74.20 - § 74.28] - Subpart C—Allowance Calculations for Combustion Sources
Subpart D -
Subpart E [§ 74.40 - § 74.50] - Subpart E—Allowance Tracking and Transfer and End of Year Compliance
Subpart F [§ 74.60 - § 74.61] - Subpart F—Monitoring Emissions: Combustion Sources
Subpart G - Subpart G—Monitoring Emissions: Process Sources [Reserved]
authority:
42 U.S.C. 7601
and 7651
source:
60 FR 17115, Apr. 4, 1995, unless otherwise noted.
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