Laws & Regulations

NPDES Permit for Pelican Wastewater Treatment Plant in Alaska

EPA's NPDES wastewater permit for the City of Pelican Wastewater Treatment Plant in Alaska.

NPDES Permit for Midnite Mine in Washington

NPDES permit and associated documents for for the Dawn Mining Company Midnite Mine located on the Spokane Indian Reservation in eastern Washington.

Memorandum: Region 10 Guidance on Water Quality-Based Effluent Limits Set Below Analytical Detection/Quantitation Limits

EPA Region 10 memorandum on water quality-based effluent limits set below the minimum level (ML) in NPDES permits.

South Carolina NPDES Permits

NPDES water permits issued in South Carolina.

Process of Reviewing the National Ambient Air Quality Standards

2012 Final Rules for Oil and Natural Gas Industry

Northwest Water Quality Temperature Guidance for Salmon, Steelhead and Bull Trout

EPA's guidance and supporting documents to assist Pacific Northwest states and tribes in adopting water quality standards for temperature.

Open Burning on Indian Reservations in Idaho, Oregon, and Washington

The Open Burning Rule under the Federal Air Rules for Reservations prohibits burning certain types of materials that cause air pollution and affect people's health.

Responses to 40 CFR Part 75 Petitions - 2005

Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2005.

NDWAC Membership

NDWAC descriptions and documents for memberships including requirements and working groups.

Memorandum of Agreements Between EPA and States Authorized to Implement the National Pollutant Discharge Elimination System (NPDES) Program

National Pollutant Discharge Elimination System Memorandum of Agreement Between the States and the United States Environmental Protection Agency

Ozone (O3) Standards - Planning Documents from Current Review

The planning phase of the NAAQS review process begins with a science policy workshop. Drawing from the workshop discussions, EPA prepares an Integrated Review Plan (IRP).

Maximum Clean Air Act (CAA) Timeframe Associated With Each SIP Element (From Effective Date of Designation)

Unofficial timetable: consult federal regulations and notices for comprehensive information.

Aluminum, Copper, and Other Nonferrous Foundries: National Emission Standards for Hazardous Air Pollutants (NESHAP) for Area Sources

Includes rule history, rule summary, Federal Register citations and compliance documents for 40 CFR 63 Subpart ZZZZZZ.

Paints and Allied Products Manufacturing: National Emission Standards for Hazardous Air Pollutants (NESHAP) for Area Sources

Read the text of this NESHAP regulation on Paints and Allied Products manufacturing. Find the rule summary, and rule history, effective dates, and the federal register citations and fact sheets on the rule.

Fact Sheets and Additional Information Regarding the Primary National Ambient Air Quality Standard (NAAQS) for Sulfur Dioxide

Find tools for primary standards for Sulfur Dioxide, maps of nonattainment areas, an overview of the proposal, projected nonattainment areas for 2020, and a presentation on the 2011 SO2 primary NAAQS revision.

Metal Fabrication and Finishing Source Categories: National Emission Standards for Hazardous Air Pollutants (NESHAP) Area Source Standards

Includes rule history, rule summary and compliance documents for 40 CFR 63 Subpart XXXXXX.

Draft Guidance for the Second Implementation Period of the Regional Haze Rule

draft guidance document

Responses to 40 CFR Part 75 Petitions - 2004

Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2004.