U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 40Chapter IPart 52Subpart TT - Subpart TT—Utah
§ 52.2320 - Identification of plan.
§ 52.2321 - Classification of regions.
§ 52.2322 - Extensions.
§ 52.2323 - Approval status.
§ 52.2324 - Original identification of plan.
§§ 52.2325-52.2330 - §[Reserved]
§ 52.2331 - Attainment dates for national standards.
§ 52.2332 - Control strategy: Ozone.
§ 52.2333 - Legal authority.
§§ 52.2334-52.2345 - §[Reserved]
§ 52.2346 - Significant deterioration of air quality.
§ 52.2347 - Stack height regulations.
§ 52.2348 - National Highway Systems Designation Act Motor Vehicle Inspection and Maintenance (I/M) Programs.
§ 52.2350 - Emission inventories.
§ 52.2351 - Area-wide nitrogen oxides (NOX) exemption.
§ 52.2352 - Change to approved plan.
§ 52.2353 - Control strategy: Carbon monoxide.
§ 52.2354 - Interstate transport.
§ 52.2355 - Section 110(a)(2) infrastructure requirements.
§ 52.2356 - Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of nitrogen oxides?
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