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Regulations last checked for updates: Jan 23, 2026
Title 40 - Protection of Environment last revised: Dec 23, 2031
All Titles
Title 40
Chapter I
Part 429
Subpart A - Subpart A—Barking Subcategory
§ 429.20 - Applicability; description of the barking subcategory.
§ 429.21 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§ 429.22 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
§ 429.23 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). [Reserved]
§ 429.24 - New source performance standards (NSPS).
§ 429.25 - Pretreatment standards for existing sources (PSES).
§ 429.26 - Pretreatment standards for new sources (PSNS).
source:
46 FR 8285, Jan. 26, 1981, unless otherwise noted.
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