40 CFR § 63.61 National Emission Standards for Hazardous Air Pollutants for Source Categories
§ 63.61 Deletion of methyl ethyl ketone from the list of hazardous air pollutants.
Current through Aug 22, 2025 · Read all of Part 63
⚠ 11 pending changes to Part 63
- Review of National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review; Reopening of Comment PeriodProposed Rule · Environmental Protection Agency
- National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review Reconsideration; Extension of Comment PeriodProposed Rule · Environmental Protection Agency
- National Emission Standards for Hazardous Air Pollutants: National Emission Standards for Hazardous Air Pollutants: Crude Oil and Natural Gas Production Facilities and Natural Gas Transmission and Storage Facilities; Technology Review and Reconsideration; Extension of Comment PeriodProposed Rule · Environmental Protection Agency
- Petition To Delist Hazardous Air Pollutant: 2-Butoxyethyl Benzoate (2-BEB)Proposed Rule · Environmental Protection Agency
- Approval of Missouri's Request for Partial Program Delegation of Clean Air Act Section 112(r) Prevention of Accidental Release ProgramProposed Rule · Environmental Protection Agency
- National Emission Standards for Marine Tank Vessel Loading Operations: Technology ReviewProposed Rule · Environmental Protection Agency
- National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review ReconsiderationProposed Rule · Environmental Protection Agency
- National Emission Standards for Hazardous Air Pollutants: Crude Oil and Natural Gas Production Facilities and Natural Gas Transmission and Storage Facilities; Technology Review and ReconsiderationProposed Rule · Environmental Protection Agency
- National Emission Standards for Hazardous Air Pollutants for Gasoline Distribution Facilities and Standards of Performance for Bulk Gasoline Terminals ReconsiderationProposed Rule · comments close Nov 12, 2026 · Environmental Protection Agency
- New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington StateProposed Rule · comments close Nov 18, 2026 · Environmental Protection Agency
The substance methyl ethyl ketone (MEK, 2-Butanone) (CAS Number 78-93-3) is deleted from the list of hazardous air pollutants established by 42 U.S.C. 7412(b)(1).
[70 FR 75059, Dec. 19, 2005]