§437.21. Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
40 C.F.R. § 437.21
Except as provided in 40 CFR 125.30 through 125.32 or § 437.20(b), any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BPT:
Notes, amendments, and revision history
Amendments
[65 FR 81300, Dec. 22, 2000, as amended at 68 FR 71023, Dec. 22, 2003]
Authority
Authority: 33 U.S.C. 1311, 1314, 1316, 1317, 1318, 1342, and 1361.
Source
Source: 65 FR 81300, Dec. 22, 2000, unless otherwise noted.
Amendments
[65 FR 81300, Dec. 22, 2000, as amended at 68 FR 71023, Dec. 22, 2003]