40 C.F.R. § 439.25

New source performance standards (NSPS).

Last amended: 2016Year: 2026Length: 114 wordsSubsections: 1Official source

Cite as 40 C.F.R. § 439.25 (2026)

(a) Any new source subject to this subpart must achieve the following standards: Performance Standards (NSPS) Regulated parameter Maximum daily 1 Maximum monthly average 1 BOD 5 35 18 TSS 58 31 COD 228 86 1 mg/L (ppm) (b) Any new source subject to the provisions of this section that commenced discharging after November 21, 1988, and prior to November 20, 1998, must continue to achieve the standards specified for this section in the 1988 edition of 40 CFR part 439, until the expiration of the applicable time period specified in 40 CFR 122.29(d)(1), after which the source must achieve the standards specified in §§ 439.23 and 439.24. [68 FR 12273, Mar. 13, 2003]
Cross-references to the CFR
40:122.29439.23
40 C.F.R. § 439.25: New source performance standards (NSPS). | Justis AI