40 CFR § 450.22 - Effluent limitations reflecting the best available technology economically achievable (BAT).
---
identifier: "/us/cfr/t40/s450.22"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 450.22 - Effluent limitations reflecting the best available technology economically achievable (BAT)."
title_number: 40
title_name: "Protection of Environment"
section_number: "450.22"
section_name: "Effluent limitations reflecting the best available technology economically achievable (BAT)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "450"
part_name: "CONSTRUCTION AND DEVELOPMENT POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1311, 1312, 1314, 1316, 1341, 1342, 1361 and 1370."
regulatory_source: "74 FR 63057, Dec. 1, 2009, unless otherwise noted."
cfr_part: "450"
---
# 450.22 Effluent limitations reflecting the best available technology economically achievable (BAT).
Except as provided in 40 CFR 125.30 through 125.32, any point source subject to this subpart must achieve, at a minimum, the following effluent limitations representing the degree of effluent reduction attainable by application of the best available technology economically achievable (BAT).
(a)-(b) [Reserved]
(c) *Erosion and sediment controls.* The limitations are described at § 450.21(a).
(d) *Soil stabilization.* The limitations are described at § 450.21(b).
(e) *Dewatering.* The limitations are described at § 450.21(c).
(f) *Pollution prevention measures.* The limitations are described at § 450.21(d).
(g) *Prohibited discharges.* The limitations are described at § 450.21(e).
(h) *Surface outlets.* The limitations are described at § 450.21(f).
[74 FR 63057, Dec. 1, 2009, as amended at 75 FR 10439, Mar. 8, 2010; 75 FR 68217, Nov. 5, 2010; 80 FR 25236, May 4, 2015]