40 CFR 439.42
§ 439.42 Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
United States · 40 CFR — Protection of Environment · Status: effective
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- Citation
- 40 CFR 439.42, § 439.42 Effluent limitations attainable by the application of the best practicable control technology currently available (BPT), United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/190293
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Full text
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BPT:
(a) The limitation for BOD5 is the same as specified in § 439.12(a). No facility shall be required to attain a monthly average limitation for BOD5 that is less than the equivalent of 45 mg/L.
(b) The limitation for TSS is the same as specified in § 439.12(b).
(c) The limitations for COD are the same as specified in § 439.22(c) and (d).
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.