U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 40Chapter IPart 52Subpart S - Subpart S—Kentucky
§ 52.919 - [Reserved]
§ 52.920 - Identification of plan.
§ 52.921 - Classification of regions.
§ 52.922 - [Reserved]
§ 52.923 - Approval status.
§ 52.924 - Legal authority.
§ 52.925 - General requirements.
§ 52.926 - Attainment dates for national standards.
§ 52.927 - Compliance schedule.
§ 52.928 - Control strategy: Sulfur oxides.
§ 52.929 - Determination of attainment.
§ 52.930 - Control strategy: Ozone.
§ 52.931 - Significant deterioration of air quality.
§ 52.932 - Rules and regulations.
§ 52.933 - Control Strategy: Sulfur oxides and particulate matter.
§ 52.934 - [Reserved]
§ 52.935 - PM10 State implementation plan development in group II areas.
§ 52.936 - [Reserved]
§ 52.937 - Review of new sources and modifications.
§ 52.938 - General conformity.
§ 52.939 - Original identification of plan section.
§ 52.940 - Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of nitrogen oxides?
§ 52.941 - Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of sulfur dioxide?
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