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§ 63.61 Deletion of methyl ethyl ketone from the list of hazardous air pollutants.

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Title 40 CFR: Protection of Environment › Chapter I › Part 63 › Subpart C › § 63.61: § 63.61 Deletion of methyl ethyl ketone from the list of hazardous air pollutants.

This text was captured on Aug 14, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

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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]

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