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Title 40

Displaying title 40, up to date as of 7/14/2026. Title 40 was last amended 7/14/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter CAir Programs50 – 99
Part 73Sulfur Dioxide Allowance System73.1 – 73.90
Subpart ABackground and Summary73.1 – 73.3
§ 73.1Purpose and scope.
§ 73.2Applicability.
§ 73.3General.
Subpart BAllowance Allocations73.10 – 73.27
Subpart CAllowance Tracking System73.30 – 73.38
Subpart DAllowance Transfers73.50 – 73.53
§ 73.50Scope and submission of transfers.
§ 73.51 [Reserved]
§ 73.52EPA recordation.
§ 73.53Notification.
Subpart EAuctions, Direct Sales, and Independent Power Producers Written Guarantee73.70 – 73.73
§ 73.70Auctions.
§ 73.71Bidding.
§ 73.72Direct sales.
§ 73.73Delegation of auctions and sales and termination of auctions and sales.
Subpart FEnergy Conservation and Renewable Energy Reserve73.80 – 73.86
Subpart GSmall Diesel Refineries73.90
§ 73.90Allowance allocations for small diesel refineries.