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Title 40

Displaying title 40, up to date as of 7/08/2026. Title 40 was last amended 7/08/2026.
There have been changes in the last two weeks to Subpart NN.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter CAir Programs50 – 99
Part 52Approval and Promulgation of Implementation Plans52.01 – 52.2999
Subpart NNPennsylvania52.2020 – 52.2065
§ 52.2020Identification of plan.
§ 52.2021Classification of regions.
§ 52.2022 [Reserved]
§ 52.2023Approval status.
§§ 52.2024-52.2026 [Reserved]
§ 52.2027Approval status of Pennsylvania's Generic NOX and VOC RACT Rules.
§§ 52.2028-52.2032 [Reserved]
§ 52.2033Control strategy: Sulfur oxides.
§ 52.2034 [Reserved]
§ 52.2035Photochemical Assessment Monitoring Stations (PAMS) Program.
§ 52.2036Base year emissions inventory.
§ 52.2037Control strategy plans for attainment and rate-of-progress: Ozone.
§ 52.2038Rate of Progress Plans: Ozone.
§ 52.2039Interstate transport.
§ 52.2040Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of nitrogen oxides?
§ 52.2041Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of sulfur dioxide?
§ 52.2042Visibility protection.
§ 52.2043Control strategy for maintenance plans: ozone.
§§ 52.2044-52.2051 [Reserved]
§ 52.2052Motor vehicle emissions budgets for Pennsylvania ozone areas.
§ 52.2053The Motor Vehicle Emissions Budgets for the Pennsylvania Counties in the Philadelphia-Wilmington, PA-NJ-DE 1997 Fine Particulate Matter Nonattainment Area
§ 52.2054Control of asphalt paving material.
§ 52.2055Control strategy: Lead.
§ 52.2056Determinations of attainment.
§ 52.2057 [Reserved]
§ 52.2058Prevention of significant air quality deterioration.
§ 52.2059Control strategy: Particulate matter. \
§ 52.2060Small Business Assistance Program.
§ 52.2061Operating permits.
§ 52.2062Plan approvals.
§ 52.2063Original identification of plan section.
§ 52.2064EPA-approved Source-Specific Reasonably Available Control Technology (RACT) for Volatile Organic Compounds (VOC) and Oxides of Nitrogen (NOX).
§ 52.2065Federal implementation plan addressing reasonably available control technology requirements for certain sources.