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Title 40

Displaying title 40, up to date as of 7/09/2026. Title 40 was last amended 7/09/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter CAir Programs50 – 99
Part 60Standards of Performance for New Stationary Sources60.1 – 60.6685
Subpart TTTTaStandards of Performance for Greenhouse Gas Emissions for Modified Coal-Fired Steam Electric Generating Units and New Construction and Reconstruction Stationary Combustion Turbine Electric Generating Units60.5508a – 60.5580a
Applicability60.5508a – 60.5509a
§ 60.5508aWhat is the purpose of this subpart?
§ 60.5509aAm I subject to this subpart?
Emission Standards60.5515a – 60.5525a
§ 60.5515aWhich pollutants are regulated by this subpart?
§ 60.5520aWhat CO2 emissions standard must I meet?
§ 60.5525aWhat are my general requirements for complying with this subpart?
Monitoring and Compliance Determination Procedures60.5535a – 60.5540a
§ 60.5535aHow do I monitor and collect data to demonstrate compliance?
§ 60.5540aHow do I demonstrate compliance with my CO2 emissions standard and determine excess emissions?
Notification, Reports, and Records60.5550a – 60.5565a
§ 60.5550aWhat notifications must I submit and when?
§ 60.5555aWhat reports must I submit and when?
§ 60.5560aWhat records must I maintain?
§ 60.5565aIn what form and how long must I keep my records?
Other Requirements and Information60.5570a – 60.5580a
§ 60.5570aWhat parts of the general provisions apply to my affected EGU?
§ 60.5575aWho implements and enforces this subpart?
§ 60.5580aWhat definitions apply to this subpart?
Table 1 to Subpart TTTTa of Part 60
CO2 Emission Standards for Affected Stationary Combustion Turbines That Commenced Construction or Reconstruction After May 23, 2023 (Gross or Net Energy Output-Based Standards Applicable as Approved by the Administrator)
Table 2 to Subpart TTTTa of Part 60
CO2 Emission Standards for Affected Steam Generating Units or IGCC That Commenced Modification After May 23, 2023
Table 3 to Subpart TTTTa of Part 60
Applicability of Subpart A of Part 60 (General Provisions) to Subpart TTTTa