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§ 63.63 Deletion of ethylene glycol monobutyl ether from the list of hazardous air pollutants.
The substance ethylene glycol monobutyl ether (EGBE,2-Butoxyethanol) (CAS Number 111–76–2) is deleted from the list of hazardous air pollutants established by 42 U.S.C. 7412(b)(1).