40 CFR 450.10 - Applicability.

Regulations last checked for updates: Feb 06, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026

View all text of Subpart A [§ 450.10 - § 450.11]

§ 450.10 - Applicability.

(a) This part applies to discharges associated with construction activity required to obtain NPDES permit coverage pursuant to 40 CFR 122.26(b)(14)(x) and (b)(15).

(b) The provisions of § 450.22(a) do not apply to discharges associated with interstate natural gas pipeline construction activity.

(d) The BPT, BCT and BAT effluent limitations at §§ 450.21 through 450.23 apply to all sources not otherwise covered by paragraph (c) of this section and are effective February 1, 2010.

authority: 33 U.S.C. 1311,1312,1314,1316,1341,1342,1361

source: 74 FR 63057, Dec. 1, 2009, unless otherwise noted.

cite as: 40 CFR 450.10