Code of Federal Regulations > Title 40 > Chapter I > Part 52 > Subpart A - Subpart A—General Provisions

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 30, 2025

§ 52.01 - Definitions.

§ 52.02 - Introduction.

§ 52.04 - Classification of regions.

§ 52.05 - Public availability of emission data.

§ 52.06 - Legal authority.

§ 52.07 - Control strategies.

§ 52.08 - Rules and regulations.

§ 52.09 - Compliance schedules.

§ 52.10 - Review of new sources and modifications.

§ 52.11 - Prevention of air pollution emergency episodes.

§ 52.12 - Source surveillance.

§ 52.13 - Air quality surveillance; resources; intergovernmental cooperation.

§ 52.14 - State ambient air quality standards.

§ 52.15 - Public availability of plans.

§ 52.16 - Submission to Administrator.

§ 52.17 - Severability of provisions.

§ 52.18 - Abbreviations.

§ 52.20 - Attainment dates for national standards.

§ 52.21 - Prevention of significant deterioration of air quality.

§ 52.23 - Violation and enforcement.

§ 52.24 - Statutory restriction on new sources.

§ 52.26 - [Reserved]

§ 52.27 - Protection of visibility from sources in attainment areas.

§ 52.28 - Protection of visibility from sources in nonattainment areas.

§ 52.29 - [Reserved]

§ 52.30 - Criteria for limiting application of sanctions under section 110(m) of the Clean Air Act on a statewide basis.

§ 52.31 - Selection of sequence of mandatory sanctions for findings made pursuant to section 179 of the Clean Air Act.

§ 52.32 - Sanctions following findings of SIP inadequacy.

§ 52.33 - Compliance certifications.

§ 52.34 - Action on petitions submitted under section 126 relating to emissions of nitrogen oxides.

§ 52.35 - What are the requirements of the Federal Implementation Plans (FIPs) for the Clean Air Interstate Rule (CAIR) relating to emissions of nitrogen oxides?

§ 52.36 - What are the requirements of the Federal Implementation Plans (FIPs) for the Clean Air Interstate Rule (CAIR) relating to emissions of sulfur dioxide?

§ 52.37 - [Reserved]

§ 52.38 - What are the requirements of the Federal Implementation Plans (FIPs) for the Cross-State Air Pollution Rule (CSAPR) relating to emissions of nitrogen oxides?

§ 52.39 - What are the requirements of the Federal Implementation Plans (FIPs) for the Cross-State Air Pollution Rule (CSAPR) relating to emissions of sulfur dioxide?

§ 52.40 - What are the requirements of the Federal Implementation Plans (FIPs) relating to ozone season emissions of nitrogen oxides from sources not subject to the CSAPR ozone season trading program?

§ 52.41 - What are the requirements of the Federal Implementation Plans (FIPs) relating to ozone season emissions of nitrogen oxides from the Pipeline Transportation of Natural Gas Industry?

§ 52.42 - What are the requirements of the Federal Implementation Plans (FIPs) relating to ozone season emissions of nitrogen oxides from the Cement and Concrete Product Manufacturing Industry?

§ 52.43 - What are the requirements of the Federal Implementation Plans (FIPs) relating to ozone season emissions of nitrogen oxides from the Iron and Steel Mills and Ferroalloy Manufacturing Industry?

§ 52.44 - What are the requirements of the Federal Implementation Plans (FIPs) relating to ozone season emissions of nitrogen oxides from the Glass and Glass Product Manufacturing Industry?

§ 52.45 - What are the requirements of the Federal Implementation Plans (FIPs) relating to ozone season emissions of nitrogen oxides from the Basic Chemical Manufacturing, Petroleum and Coal Products Manufacturing, the Pulp, Paper, and Paperboard Mills Industries, Metal Ore Mining, and the Iron and Steel and Ferroalloy Manufacturing Industries?

§ 52.46 - What are the requirements of the Federal Implementation Plans (FIPs) relating to ozone season emissions of nitrogen oxides from Municipal Waste Combustors?