Laws & Regulations

EPA Responds to Recommendations for the 2015 Ozone Standards

provides access to state and tribal designation recommendations, EPAs responses and notice a availability for comment

Clean Air Act Permitting for Greenhouse Gases

Provides basic information about the greenhouse gas air permitting program, including the different types of permits and who issues them

Rescission of Preconstruction Permits Issued Under the Clean Air Act

Clean Air Act Permitting Rescission of Preconstruction Permits Issued Under the Clean Air Act

EPA Region 8 Policy for Environmental Protection in Indian Country

This guidance is intended to respond to and clarify questions that are most frequently raised by our internal and external customers and constituents, relating to: Agency protocol in working with federally recognized tribes and more

Emission Monitoring Regulatory Actions

Links to part 75 regulatory actions and recent rules

Natural Gas Transmission and Storage Facilities: National Emission Standards for Hazardous Air Pollutants (NESHAP)

learn more about the NESHAP for natural gas transmission and distribution by reading the rule summary, rule history, background information documents, and fact sheets

IPM Analysis for the Clean Air Interstate Rule (CAIR)

View Integrated Planning Model (IPM) run files and parsed files for the Clean Air Interstate Rule (CAIR) analysis, formerly known as the Interstate Air Quality Rule (IAQR).

PRIA Biopesticide PIP or Biotechnology-Derived Active Ingredient New Registration

PRIA fee determination decision tree

Secondary National Ambient Air Quality Standards (NAAQS) for Nitrogen Dioxide (NO2) and Sulfur Dioxide (SO2) and Particulate Matter (PM)

learn about the secondary NAAQS for NO2 and SO2 and PM2.5 by reading the rule history, the rule summary, the docket folder, and fact sheets

UIC Permit: PAS2R904BVEN

Lesher Oil underground injection control permit

Accomplishments and Successes of Reducing Air Pollution from Transportation in the United States

For a history of how air pollution from transportation in the US has been reduced.

EPA Supplemental Amendment for the Third Round of SO2 Area Designations

Information about EPA's third round of final area designations for the 2010 sulfur dioxide air quality standard.

Statement on Airplane Greenhouse Gas Emissions Standards Litigation

Information on motion to govern in the litigation on a rule that put in place commercial aircraft greenhouse gas (GHG) emission standards, which EPA promulgated in early 2021.

Pesticide Registration Manual: Chapter 18 - Other Federal or State Agency Requirements

This chapter provides information that a pesticide registrant may need know in order to meet other federal, state, or local requirements after the registrant has obtained a federal registration.

UIC Permit: VAS2D697BDIC

Enervest underground injection control permit

EPA Releases the First Ever National Wetland Condition Assessment

Flyer, presentation, and additional resources for the Thursday, June 16th, 2016 webcast

HFC Reclaim and Innovative Destruction Grants

HFC Reclamation and Innovative Destruction Grants - information and notice of funding opportunity

Background on Federal Indian Country Minor New Source Review

Tribal NSR Information

Advance Notice of Proposed Rulemaking for Minor Source Permitting in Indian Country, May 22, 2014

6 Source Categories - Sawmill Facilities (Final Action)

EPA is proposing options to simplify the Clean Air Act permitting process for certain smaller sources of air pollution commonly found in Indian country.