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Regulations last checked for updates: Apr 19, 2024
Title 40 - Protection of Environment last revised: Jun 26, 2024
All Titles
Title 40
Chapter I
Part 125 - PART 125—CRITERIA AND STANDARDS FOR THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
Subpart A [§ 125.1 - § 125.3] - Subpart A—Criteria and Standards for Imposing Technology-Based Treatment Requirements Under Sections 301(b) and 402 of the Act
Subpart B [§ 125.10 - § 125.11] - Subpart B—Criteria for Issuance of Permits to Aquaculture Projects
Subpart C - Subpart C [Reserved]
Subpart D [§ 125.30 - § 125.32] - Subpart D—Criteria and Standards for Determining Fundamentally Different Factors Under Sections 301(b)(1)(A), 301(b)(2) (A) and (E) of the Act
Subpart E - Subpart E—Criteria for Granting Economic Variances From Best Available Technology Economically Achievable Under Section 301(c) of the Act [Reserved]
Subpart F - Subpart F—Criteria for Granting Water Quality Related Variances Under Section 301(g) of the Act [Reserved]
Subpart G [§ 125.56 - § 125.68] - Subpart G—Criteria for Modifying the Secondary Treatment Requirements Under Section 301(h) of the Clean Water Act
Subpart H [§ 125.70 - § 125.73] - Subpart H—Criteria for Determining Alternative Effluent Limitations Under Section 316(a) of the Act
Subpart I [§ 125.80 - § 125.89] - Subpart I—Requirements Applicable to Cooling Water Intake Structures for New Facilities Under Section 316(b) of the Act
Subpart J [§ 125.90 - § 125.99] - Subpart J—Requirements Applicable to Cooling Water Intake Structures for Existing Facilities Under Section 316(b) of the Clean Water Act
Subpart K - Subpart K [Reserved]
Subpart L - Subpart L—Criteria and Standards for Imposing Conditions for the Disposal of Sewage Sludge Under Section 405 of the Act [Reserved]
Subpart M [§ 125.120 - § 125.124] - Subpart M—Ocean Discharge Criteria
Subpart N [§ 125.130 - § 125.139] - Subpart N—Requirements Applicable to Cooling Water Intake Structures for New Offshore Oil and Gas Extraction Facilities Under Section 316(b) of the Act
authority:
The Clean Water Act,
33 U.S.C. 1251
source:
44 FR 32948, June 7, 1979, unless otherwise noted.
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