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National Summary
The National Pollutant Discharge Elimination System (NPDES) permit program was established under Section 402 of the CWA, which prohibits the unauthorized discharge of pollutants from a point source (pipe, ditch, well, etc.) to U.S. waters, including municipal, commercial, and industrial wastewater discharges and discharges from large animal feeding operations. Permittees must verify compliance with permit requirements by monitoring their effluent, maintaining records, and filing periodic reports.
 
 
 
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TypeTitleDateState
Proposed Regulations05/25/01 - Proposed Rule - NPDES Regulations Addressing Cooling Water Intake Structures for New Facilities (40 CFR Parts 9, 122-125)09/01/2001National
Proposed Regulations07/06/01 - Notice - Effluent Limitations Guidelines and New Source Performance Standards for the Construction and Development Point Source Category (40 CFR Part 45)07/15/2001National
Proposed Regulations07/06/01 - Notice - Reopening of Comment Period for Certain Documents; NPDES Regulations Addressing Cooling Water Intake (40 CFR Parts 9, 122-125) 07/15/2001National
Final Regulations07/27/01 - Notice - Reissuance of the NPDES General Permit for Seafood Processors Operating Throughout Alaska in Waters of the U.S. (NPDES General Permit No. AK-G52-0000) 08/06/2001National
Final Regulations40 CFR 122 - Amendments to the NPDES Regulations for Stormwater Discharges Associated With Oil and Gas Exploration, Production, Processing, or Treatment Operations or Transmission Facilities06/12/2006National
Proposed Regulations40 CFR 122 - Amendments to the NPDES Regulations for Stormwater Discharges Associated With Oil and Gas Exploration, Production, Processing, or Treatment Operations, or Transmission Facilities01/06/2006National
Proposed Regulations40 CFR 122 - Extension of NPDES Permit Deadline for Storm Water Discharges for Oil and Gas Construction Activity That Disturbs 1 to 5 Acres01/18/2005National
Proposed Regulations40 CFR 122 - Extension of Public Comment Period for the NPDES Water Transfers Proposed Rule07/24/2006National
Final Regulations40 CFR 122 - National Pollutant Discharge Elimination System Water Transfers Rule06/13/2008National
Proposed Regulations40 CFR 122 - NPDES Water Transfers Proposed Rule06/07/2006National
Proposed Regulations40 CFR 122 - Public Meeting To Discuss Technical Issues Associated With the NPDES Stormwater Permit Coverage for Small Oil and Gas Construction Activities04/11/2005National
Proposed Regulations40 CFR 122 and 123 - NPDES Permit Requirements for Municipal Wastewater Treatment Discharges During Wet Weather Conditions01/09/2004National
Proposed Regulations40 CFR 122 and 123 - NPDES Permit Requirements for Peak Wet Weather Discharges From POTWs Treatment Plants Serving Separate Sanitary Sewer Collection Systems12/22/2005National
Proposed Regulations40 CFR 122 and 133 - NPDES Permit Requirements for Municipal Wastewater Treatment Discharges During Wet Weather Conditions11/07/2003National
Proposed Regulations40 CFR 122 and 412 - Extension of Public Comment Period for the NPDES Permit Regulation and Effluent Limitation Guidelines for CAFOs in Response to Waterkeeper Decision Proposed Rule08/04/2006National
Proposed Regulations40 CFR 122 and 412 - NPDES Permit Regulation and Effluent Limitations Guidelines and Standards for Concentrated Animal Feeding Operations07/05/2006National
Proposed Regulations40 CFR 122 and 412 - Proposed Revised Compliance Dates Under NPDES Permit Regulations and Effluent Limitations Guidelines and Standards for CAFOs05/10/2007National
Proposed Regulations40 CFR 122 and 412 - Revised Compliance Dates for NPDES Permit Regulation and Effluent Limitation Guidelines for Concentrated Animal Feeding Operations12/21/2005National
Proposed Regulations40 CFR 122 and 412 - Revised NPDES Permit Regulation and Effluent Limitation Guidelines for CAFOs in Response to Waterkeeper Decision06/30/2006National
Proposed Regulations40 CFR 123 - State Program Requirements; Revision of the Approved National Pollutant Discharge Elimination System (NPDES) Program in North Dakota03/29/2004National
Proposed Regulations40 CFR 123 and 501 - Water Pollution Control; Program Modification Application by Arizona to Administer the Sewage Sludge Management (Biosolids) Program11/21/2003National
Proposed Regulations40 CFR 125 - NPDES--Amendment of Final Regulations Addressing Cooling Water Intake Structures for New Facilities12/26/2002National
Final Regulations40 CFR 125 - NPDES--Amendment of Final Regulations Addressing Cooling Water Intake Structures for New Facilities06/19/2003National
Final Regulations40 CFR 125 - NPDES--Amendment of Final Regulations Addressing Cooling Water Intake Structures for New Facilities; Rule and Proposed Rule12/26/2002National
Proposed Regulations40 CFR 125 - NPDES--Proposed Regulations To Establish Requirements for Cooling Water Intake Structures at Phase II Existing Facilities; Notice of Data Availability03/19/2003National
Proposed Regulations40 CFR 35 - NPDES Permit Fee Incentive for Clean Water Act Section 106 Grants; Allotment Formula01/04/2007National
Final Regulations40 CFR 35 - NPDES Voluntary Permit Fee Incentive for Clean Water Act Section 106 Grants; Allotment Formula09/10/2008National
Proposed Regulations40 CFR 35 - Proposed NPDES Permit Fee Incentive for Clean Water Act Section 106 Grants--Allotment Formula; Public Meeting01/30/2007National
Proposed Regulations40 CFR 35 - Reopening of Public Comment Period for the NPDES Permit Fee Incentive for Clean Water Act Section 106 Grants; Allotment Formula03/15/2007National
Final Regulations40 CFR 35 - Withdrawal of NPDES Voluntary Permit Fee Incentive for Clean Water Act Section 106 Grants; Allotment Formula04/15/2009National
Proposed Regulations40 CFR 413 - Effluent Limitations Guidelines, Pretreatment Standards, and New Source Performance Standards for the Metal Products and Machinery Point Source Category; Notice of Data Availability06/12/2002National
Final Regulations40 CFR 9, 122 et al. - NPDES; Final Regulations To Establish Requirements for Cooling Water Intake Structures at Phase II Existing Facilities07/09/2004National
Proposed Regulations40 CFR 9, 122, 123, 124, and 125 - NPDES Proposed Regulations To Establish Requirements for Cooling Water Intake Structures at Phase III Facilities11/28/2005National
Proposed Regulations40 CFR 9, 122, 123, 124, and 125 - NPDES, Establishment of Requirements for Cooling Water Intake Structures at Phase III Facilities11/24/2004National
Final Regulations40 CFR 9, 122, 123, 124, and 125 - NPDES--Final Regulations To Establish Requirements for Cooling Water Intake Structures at Phase III Facilities06/16/2006National
Proposed Regulations40 CFR 9, 122-125 - Extension of Comment Period for NPDES; Regulations Addressing Cooling Water Intake Structures for Phase II Existing Facilities06/21/2002National
Proposed Regulations40 CFR 9, 122-125 - NPDES; Proposed Regulations to Establish Requirements for Cooling Water Intake Structures at Phase II Existing Facilities (1 of 3)04/09/2002National
Proposed Regulations40 CFR 9, 122-125 - NPDES; Proposed Regulations to Establish Requirements for Cooling Water Intake Structures at Phase II Existing Facilities (2 of 3)04/09/2002National
Proposed Regulations40 CFR 9, 122-125 - NPDES; Proposed Regulations to Establish Requirements for Cooling Water Intake Structures at Phase II Existing Facilities (3 of 3)04/09/2002National
Proposed Regulations40 CFR Chapter I - Project XL Site-specific Rulemaking for NASA White Sands Test Facility, Las Cruces, NM11/01/2001National
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