Laws & Regulations

Tribal Minor NSR Permit Amendment Application Form in Region 8

This Tribal Minor NSR application form should be used to request amendments to an existing Tribal NSR permit issued by the EPA Region 8 Tribal NSR Permitting Program.

Tribal Minor NSR Facility Contact Information Change Form in Region 8

This form should be used to notify the EPA Region 8 Federal Minor NSR Permit Program that the contact information of an existing True Minor NSR or Synthetic Minor NSR source has changed.

Sources Approved for Coverage under the Spark Ignition Engines General Permit in Region 8

The sources on Indian country reservation lands that the Region 8 has approved for coverage under the General Air Quality Permit for New and Modified Minor Source Stationary Spark Ignition Engines in Indian Country (SI Engines General Permit).

Regional Haze Rule Revisions Early Engagement Public Webinar

Learn about webinars covering the EPA's Regional Haze Rule Revision.

Publicly Owned Treatment Works General Permit (POTW GP) for Massachusetts & New Hampshire

Documents, links & contacts for the Notice of Availability of the final National Pollutant Discharge Elimination System (NPDES) General Permits for the Discharge of Wastewater from Certain Publicly Owned Treatment Works Treatment Plants (POTW).

Application Assistance: Frequently Asked Questions

Frequent Questions re San Francisco Bay Water Quality Improvement Fund

Commonwealth of the Northern Mariana Islands National Pollutant Discharge Elimination System (NPDES) Permits

NPDES water permits pending and issued in the Pacific Island territory of the Commonwealth of Northern Mariana Islands (CNMI).

Nevada National Pollutant Discharge Elimination System (NPDES) Permits

In Nevada, EPA’s Pacific Southwest (Region 9) issues all NPDES permits for any discharges on tribal lands. All other NPDES permits are issued by the Nevada Division of Environmental Protection (NDEP).

Hawai'i National Pollutant Discharge Elimination System (NPDES) Permits

EPA's Pacific Southwest (Region 9) issues all NPDES permits for any discharges into federal ocean waters in Hawai'i. All other NPDES permits are issued by the Hawai'i Department of Health.

Arizona Tribal Lands National Pollutant Discharge Elimination System (NPDES) Permits (Excluding Navajo Nation)

In Arizona, EPA's Pacific Southwest (Region 9) issues all NPDES permits for discharges on tribal lands. All other permits are issued by the Arizona Department of Environmental Quality.

American Samoa National Pollutant Discharge Elimination System (NPDES) Permits

EPA's Pacific Southwest (Region 9) issues all National Pollution Discharge Elimination System (NPDES) permits within the Pacific Island territory of American Samoa.

AS0020048: Former Aua Fuel Farm Temporary Water Treatment System, Aua Village, AS

Authorization to discharge Under NPDES Permit No. AS0020048 for the U.S. Army Corps of Engineers and Engineering/Remediation Resources Group former Aua Fuel Farm Temporary Water Treatment System, Aua Village, AS.

Tribal Minor NSR Synthetic Minor Limit Application Form in Region 8

This Tribal Minor NSR application form should be used to notify the EPA Region 8 Tribal NSR Permitting Program of requested synthetic minor emission limits associated with a new source general application form.

Tribal Minor NSR New Source General Application Form in Region 8

This Tribal Minor NSR application form should be used to request a minor NSR permit for a new construction project from the EPA Region 8 Tribal NSR Permitting Program.

Favorable Decision Upholding Radioactive/Hazardous "Mixed Waste" Storage Civil Enforcement Policy

This page contains a copy of the U.S. Court of Appeals (District of Columbia Circuit) decision in Edison Electric Institute, et al. v. EPA, No. 91-1586, which upheld the EPA's August 29, 1991, radioactive/hazardous 'mixed waste' storage civil enforcement p

Policy/Guidance about Long-Term Stewardship of Federal Facilities after Cleanup

This page contains two policy/guidance documents related to long term stewardship.

United States Department of Energy v. Ohio et al.

Held: Congress has not waived the National Government's sovereign immunity from liability for civil fines imposed by a State for past violations of the CWA or RCRA.

Webinar Slides, Asset Management 101, 01-21-2021

Slides from webinar on Asset Management 101. Presented 01/21/2021.

Approval of an Administrative Amendment for a Tribal Minor NSR Facility; Twenty-Nine Palms Band of Mission Indians Power Generation Facility, Coachella, CA

EPA Region 9 is approving an Administrative Amendment for Permit #: C-2023-6-R2 - Source ID: 69 pertaining to construction and operation of the Twenty-Nine Palms Band of Mission Indians Power Generation Facility near Coachella, CA.

• Geographic Locations: Southwest, California, Tribal Lands

Superfund: Post Construction Guidance and Documents

Access resources and guidance for the Post Construction Completion phase of Superfund site cleanup.