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Title 40

Displaying title 40, up to date as of 7/16/2026. Title 40 was last amended 7/16/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter CAir Programs50 – 99
Part 74Sulfur Dioxide Opt-Ins74.1 – 74.61
Subpart ABackground and Summary74.1 – 74.4
§ 74.1Purpose and scope.
§ 74.2Applicability.
§ 74.3Relationship to the Acid Rain program requirements.
§ 74.4Designated representative.
Subpart BPermitting Procedures74.10 – 74.19
§ 74.10Roles—EPA and permitting authority.
§ 74.12Opt-in permit contents.
§ 74.14Opt-in permit process.
§ 74.16Application requirements for combustion sources.
§ 74.17 Application requirements for process sources. [Reserved]
§ 74.18Withdrawal.
§ 74.19Revision and renewal of opt-in permit.
Subpart CAllowance Calculations for Combustion Sources74.20 – 74.28
Subpart D—Allowance Calculations for Process Sources [Reserved]
Subpart EAllowance Tracking and Transfer and End of Year Compliance74.40 – 74.50
Subpart FMonitoring Emissions: Combustion Sources74.60 – 74.61
§ 74.60Monitoring requirements.
§ 74.61Monitoring plan.
Subpart G—Monitoring Emissions: Process Sources [Reserved]