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NPDES Final Rules

Resort documents: | By Name |     | By Date |

  • 40 CFR 122.21 (TXT) (52K)
  • Individual permit application requirements.
    Federal Register Volume No.: 13
    CFR Title: 40
    CFR Part: 122
    CFR Section: 122.21
    Date Published: 07/01/1998

  • 40 CFR 122.26(c)(1)(i) (TXT)
  • Individual application requirements for storm water discharges associated with industrial activity.
    Federal Register Volume No.: 13
    CFR Title: 40
    CFR Part: 122
    CFR Section: 122.26
    Date Published: 07/01/1998

  • Amendments to Streamline the NPDES Program Regulations: Round Two (PDF) (229K)
  • The Environmental Protection Agency revised the National Pollutant Discharge Elimination System (NPDES) regulations to reduce cost and burden to permit issuing authorities and the permitted community, while continuing to maintain its commitment to protecting human health and the environment.
    Federal Register Volume No.: 65
    Federal Register No.: 94
    Page Number: 30886
    Date Published: 05/15/2000

  • Amendments to the NPDES Regulations for Stormwater Discharges Associated with Oil and Gas Exploration, Production, Processing, or Treatment Operations or Transmission Facilities
  • Consistent with the Energy Policy Act of 2005, this final rule exempts construction activities at oil and gas sites from the requirement to obtain an NPDES permit for storm water discharges except in very limited instances. EPA public noticed the proposed rule on January 6, 2006 with the public comment period closing on February 21, 2006. This rule became effective June 12, 2006. Note: This rule has been vacated effective November 2008. The effective requirements are the regulations in place prior to the 2006 rule plus the additional Energy Policy Act clarification of the activities included in the CWA 402(l)(2) exemption. See http://cfpub.epa.gov/npdes/stormwater/oilgas.cfm for more information.
    Date Published: 06/12/2006
  • Consolidated Concentrated Animal Feeding Operations (CAFO) Regulations (PDF) (452K)
  • This document consolidates the current federal CAFO regulatory requirements included in the 2012 CAFO Rule Revision to remove the 5th Circuit Court’s vacated elements, and the 2008 and 2003 Final CAFO Rules into a single document.
    Date Published: 12/12/2008

  • EPA Administered Permit Programs: The National Pollutant Discharge Elimination System
  • This document includes the relevant portions of the AFO definition, at 122 Appendix B.
    CFR Title: 40
    CFR Part: 122
    CFR Section: 122.23(b)(1)
    Date Published: 11/16/1990
  • Extension of CAFO Compliance Dates (2007)
  • This final rule extends certain compliance dates in the National Pollutant Discharge Elimination System (NPDES) permitting requirements and Effluent Limitations Guidelines (ELGs) for concentrated animal feeding operations (CAFOs). The extension is in response to changes required by the Second Circuit Court of Appeals decision in Waterkeeper Alliance et al. v. EPA.
    Federal Register Volume No.: 72
    Federal Register No.: 9
    Page Number: 26582
    CFR Title: 40
    CFR Part: 122 and 412
    Date Published: 07/24/2007
  • Extension of NPDES Permit Deadline for Storm Water Discharges for Oil and Gas Activity That Disturbs One to Five Acres (PDF) (63K)
  • EPA is extending the regulatory deadline that would require stormwater permit coverage for oil and gas construction activities that disturb between one and five acres of land until June 12, 2006. The additional time will be used to consider comments raised by stakeholders and to consider the economic, legal, and procedural implications related to controlling stormwater discharges from these sites. The extension also describes our intent to develop and propose a regulation by September 12, 2005 that would address stormwater discharges from these oil and gas construction sites. We also plan to hold at least one public meeting with stakeholders to exchange information on current industry practices and their effectiveness in protecting water quality.
    Date Published: 03/04/2005

  • Feedlots Point Source Category
  • Feedlots ELG covers CAFOs that raise beef and dairy cattle, poultry, swine, horses, and sheep. Amended at 60 FR 33951, June 29, 1995.
    CFR Title: 40
    CFR Part: 412
    Date Published: 02/14/1974
  • Final National Pollutant Discharge Elimination System (NPDES) General Permit for Stormwater Discharges from Construction Activities (PDF) (180.5K)
  • EPA’s Regional Offices are issuing their final 2012 National Pollutant Discharge Elimination System general permit for stormwater discharges from large and small construction activities.
    Federal Register Volume No.: 77
    Federal Register No.: 40
    Page Number: 12286
    Date Published: 02/29/2012

  • Final Water Quality Guidance for the Great Lakes System; Final Rule (PDF) (533K)
  • Great Lakes States and Tribes will use the water quality criteria, methodologies, policies, and procedures in this Guidance to establish consistent, enforceable, long-term protection for fish and shellfish in the Great Lakes and their tributaries, as well as for the people and wildlife who consume them. This Guidance was initially developed by the Great Lakes States, EPA, and other Federal agencies in open dialogue with citizens, local governments, and industries in the Great Lakes ecosystem. It will affect all types of pollutants, but will target especially the types of longlasting pollutants that accumulate in the food web of large lakes. The Guidance consists of water quality criteria for 29 pollutants to protect aquatic life, wildlife, and human health, and detailed methodologies to develop criteria for additional pollutants; implementation procedures to develop more consistent, enforceable water quality-based effluent limits in discharge permits, as well as total maximum daily loads of pollutants that can be allowed to reach the Lakes and their tributaries from all sources; and antidegradation policies and procedures.
    Federal Register Volume No.: 60
    Federal Register No.: 56
    Page Number: 15365
    Date Published: 03/23/1995

  • General Pretreatment Regulations for Existing and New Sources of Pollution (PDF) (2.0MB)
  • On February 2, 1977, the EPA proposed a rule (42 FR 6476-6502) which would establish mechanisms and procedures for enforcing national pretreatment standards controlling the introduction of nondomestic wastes into publicly owned treatment works (POTWs).
    Federal Register Volume No.: 43
    Federal Register No.: 123
    Page Number: 27736
    CFR Title: 40
    CFR Part: 403
    Date Published: 06/26/1978

  • General Pretreatment Regulations for Existing and New Sources of Pollution (PDF) (398K)
  • This rule establishes responsibilities of Federal, State, and local government, industry and the public to implement National Pretreatment Standards to control pollutants which pass through or interfere with treatment processes in Publicly Owned Treatment Works (POTWs) or which may contaminate sewage sludge.
    Date Published: 11/10/2005

  • Modification to 2008 National Pollutant Discharge Elimination System (NPDES) General Permit for Stormwater Discharges Associated With Construction Activities (PDF) (197K)
  • EPA Regions 1, 2, 3, 5, 6, 7, 8, 9, and 10 are modifying the 2008 National Pollutant Discharge Elimination System (NPDES) general permits for stormwater discharges associated with construction activity in order to extend until February 15, 2012 the expiration date of the permit.
    Federal Register Volume No.: 76
    Federal Register No.: 131
    Page Number: 40355
    Date Published: 07/08/2011

  • National Pollutant Discharge Elimination System - Regulations for Revision of the Water Pollution Control Program Addressing Storm Water Discharges; Final Rule
  • Phase II regulations expand the existing NPDES stormwater program (Phase I) by addressing stormwater discharges from small MS4s and construction sites that disturb 1 to 5 acres. Although these sources are automatically designated by the rule, the rule allows for the exclusion of certain sources from the national program based on a demonstration of the lack of impact on water quality, and the inclusion of others based on a higher likelihood of localized adverse impact on water quality. The regulations also exclude from the NPDES program stormwater discharges from industrial facilities that have "no exposure" of industrial activities or materials to stormwater.
    Federal Register Volume No.: 64
    Federal Register No.: 235
    Page Number: 68721-68851
    CFR Title: 40
    CFR Part: 9, 122 , 123, 124
    Date Published: 12/08/1999
  • National Pollutant Discharge Elimination System Permit Application Regulations for Stormwater Discharges; Final Rule
  • Phase I establishes regulations setting forth National Pollutant Discharge Elimination System (NPDES) permit application requirements for: stormwater discharges associated with industrial activity; discharges from a municipal separate storm sewer system serving a population of 250,000 or more; and discharges from municipal separate storm sewer systems serving a population of 100,000 or more, but less than 250,000.
    Date Published: 11/16/1990
  • National Pollutant Discharge Elimination System Permit Regulation and Effluent Limitation Guidelines and Standards for Concentrated Animal Feeding Operations (CAFOs); Final Rule (2003)
  • Revises and clarifies the Environmental Protection Agency's (EPA) regulatory requirements for concentrated animal feeding operations (CAFOs) under the Clean Water Act. This final rule will ensure that CAFOs take appropriate actions to manage manure effectively in order to protect the nation's water quality. The rule revises two sections of the Code of Federal Regulations (CFR), the National Pollutant Discharge Elimination System (NPDES) permitting requirements for CAFOs (Sec. 122) and the Effluent Limitations Guidelines and Standards (ELGs) for CAFOs (Sec. 412) (EPA-821-03-001).
    Date Published: 02/12/2003
  • Revised General Pretreatment Regulations for Existing and New Sources of Pollution
  • This rule changed the Pretreatment Program regulations to allow local POTWs that have completed the Project eXcellence and Leadership (Project XL) selection process, including Final Project Agreement (FPA) development, to modify their approved local Pretreatment Programs. These POTWs are now allowed to modify their programs, and implement the new local programs as described in their FPAs.
    Federal Register Volume No.: 66
    Federal Register No.: 192
    Page Number: 50334
    CFR Title: 40
    CFR Part: 403
    Date Published: 10/03/2001
  • Revised National Pollutant Discharge Elimination System Permit Regulation and Effluent Limitations Guidelines for Concentrated Animal Feeding Operations (2011) (PDF) (404K)
  • Under the Federal Water Pollution Control Act (Clean Water Act or CWA), EPA is revising the National Pollutant Discharge Elimination System (NPDES) permitting requirements and Effluent Limitations Guidelines and Standards (ELGs) for concentrated animal feeding operations (CAFOs) in response to the order issued by the U.S. Court of Appeals for the Fifth Circuit in National Pork Producers et al. v. EPA. The court vacates those provisions of the 2008 Rule that create liability for failing to apply for an NPDES permit and upholds the provisions of the 2008 Rule that allow permitting authorities to regulate a permitted CAFO’s land application and include these requirements in a CAFO’s NPDES permit.
    Date Published: 03/15/2011

  • Revised National Pollutant Discharge Elimination System Permit Regulation and Effluent Limitations Guidelines for Concentrated Animal Feeding Operations in Response to the Waterkeeper Decision (2008)
  • Under the Federal Water Pollution Control Act (Clean Water Act or CWA), EPA is revising the National Pollutant Discharge Elimination System (NPDES) permitting requirements and Effluent Limitations Guidelines and Standards (ELGs) for concentrated animal feeding operations (CAFOs) in response to the order issued by the U.S. Court of Appeals for the Second Circuit in Waterkeeper Alliance et al. v. EPA, 399 F.3d 486 (2d Cir. 2005). This final rule responds to the court order while furthering the statutory goal of restoring and maintaining the nation’s water quality by ensuring that CAFOs properly manage manure generated by their operations.
    CFR Title: 40
    Date Published: 11/20/2008
  • Standards for the Use and Disposal of Sewage Sludge; Final Rule
  • Under authority of Sections 405(d) and (e) of the Clean Water Act (CWA), as amended (33 U.S.C.A. 1251, et seq.), the Environmental Protection Agency (EPA) is promulgating regulations to protect public health and the environment from any reasonably anticipated adverse effects of certain pollutants that may be present in sewage sludge. The regulations establish requirements for the final use and disposal of sewage sludge in three circumstances.
    Date Published: 07/01/2000
  • Streamlined Procedures for Modifying Approved Publicly Owned Treatment Works Pretreatment Programs; Final Rule (PDF) (1.09MB)
  • In this regulation revision, EPA revised the procedures for modifying the requirements of approved Publicly Owned Treatment Works (POTW) Pretreatment Programs incorporated into National Pollutant Discharge Elimination System permits issued to POTWs under the Clean Water Act.
    Federal Register Volume No.: 62
    Federal Register No.: 137
    Page Number: 38406
    CFR Title: 40
    CFR Part: 403
    Date Published: 07/17/1997

  • Streamlining the General Pretreatment Regulations for Existing and New Sources of Pollution
  • On September 27, 2005, EPA signed and on October 14, 2005 published in the Federal Register final changes to its General Pretreatment Regulations. The final "pretreatment streamlining" rule is designed to reduce the burden to users; protect the environment; and provide more flexibility in technical and administrative requirements affecting industrial users, municipal sewage treatment facilities, and state and EPA authorities. (Note: Unless otherwise noted, the documents accessible through this Pretreatment page have not been updated to reflect new or revised rules after the date of publication of the document.)
    Federal Register Volume No.: 70
    Federal Register No.: 198
    Page Number: 60134
    CFR Title: 40
    CFR Part: 9, 122, and 403
    Date Published: 09/27/2005
  • Water Transfers Final Rule (PDF) (158K)
  • EPA is publishing a final rule to exclude water transfers from the NPDES permitting program. The Agency believes that Congress intended for water transfers to be subject to oversight by water resource management agencies and State non-NPDES authorities, rather than the NPDES permitting program. The final rule defines a water transfer as an activity that conveys or connects waters of the United States without subjecting the transferred water to intervening industrial, municipal, or commercial use. This does not apply to pollutants introduced by the water transfer activity itself to the water being transferred.
    Federal Register Volume No.: 13
    Federal Register No.: 115
    Page Number: 33697
    Date Published: 06/09/2008

  • Whole Effluent Toxicity: Guidelines Establishing Test Procedures for the Analysis of Pollutants (TXT) (141K)
  • This final rule amends the "Guidelines Establishing Test Procedures for the Analysis of Pollutants," 40 CFR part 136, to add whole effluent toxicity (WET) testing methods to the list of Agency approved methods in Tables IA and II, under the Clean Water Act. This action amends 40 CFR 136.3 (Tables 1A and II) by adding methods for measuring the acute and short-term chronic toxicity of effluents and receiving waters.
    Federal Register Volume No.: 60
    Federal Register No.: 199
    Page Number: 53529
    CFR Title: 40
    CFR Part: 136
    Date Published: 10/16/1995

  • Whole Effluent Toxicity: Guidelines Establishing Test Procedures for the Analysis of Pollutants; Final Rule, Technical Corrections (TXT) (28K)
  • EPA is amending the "Guideline Establishing Test Procedures for the Analysis of Pollutants'' at 40 CFR part 136 for whole effluent toxicity (WET) testing under the Clean Water Act, and also is amending three technical documents incorporated by reference in those regulations. The amendments correct minor errors and omissions, provide technical clarifications, and establish consistency among the technical documents.
    CFR Title: 40
    CFR Part: 136
    Date Published: 02/02/1999

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Last updated on August 22, 2012 9:58 AM
URL:http://cfpub.epa.gov/npdes/regresult.cfm