40 CFR § 420.48
Pretreatment standards compliance dates
June 9, 2020
Compliance with the pretreatment standards for existing sources set forth in §420.45(d) of this subpart is required not later than October 17, 2005 whether or not the pretreatment authority issues or amends a pretreatment permit requiring such compliance.
[67 FR 64268, Oct. 17, 2002]
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