Learn the Issues

1999 Regional Haze Rule for Protection of Visibility in National Parks and Wilderness Areas

Recommended Area Designations for the 2012 National Air Quality Standards for Fine Particles - Aug 2014

In response to recommendations from state and tribal representatives, EPA sent letters outlining the areas it’s intended designations for the annual fine particle air quality standards set in 2012.

EPA Finalizes Initial Area Designations for the 2012 National Air Quality Standard for Fine Particles - Dec 2014

After considering state and tribal recommendations, reviewing the most recent certified fine particle air quality data, and emissions that contribute fine particle pollution, EPA has completed initial designations for the 2012 annual fine particle standard

EPA Establishes Additional Final Area Designations for the 2012 Annual Fine Particle Standard for Areas in Georgia and Florida

EPA issues initial designations for certain areas in Georgia and Florida for the 2012 primary annual national ambient air quality standard for fine particle pollution.

Additional Final Area Designations and Technical Amendment for the 2012 Annual Fine Particle Standard Established in 2012 - March 2015

EPA is establishing or revising initial area designations and a technical amendment to correct an inadvertent error in the initial designation for one area for the 2012 annual national ambient air quality standards for fine particle pollution.

PM25 NAAQS Final SIP Requirements Rule July 2016

This rule establishes planning requirements for states with areas that do not meet the National Ambient Air Quality Standards for fine particle pollution.

Voluntary Fireplace Program Partners

List of manufacturers that are participating in EPA's Voluntary Fireplace Program

Questions and Answers About R-22a Safety

This page includes questions and answers about R-22a.

EPCRA Milestones Through the Years (Text Version)

Timeline of the significant events that lead to the creation of EPCRA and subsequent actions.

State Allocations

This page lists the state agencies receiving DERA funds, agency name and amount received, in current fiscal year

Transportation of Radioactive Material

All shipments of radioactive material must be packaged and transported according to strict federal regulations. These regulations protect the public, transportation workers, and the environment from potential exposure to radiation.

Surface Coal Mining in Appalachia

Basic information about how we regulate surface coal mining in Appalachia.

Underground Storage Tanks (USTs)

Provides information about preventing and cleaning up releases from underground storage tanks.

Anadarko Petroleum Corp. - Eastern Gulf of Mexico Outer Continental Shelf (OCS) Final Permit Documents Issued By EPA Region 4

Anadarko Petroleum Corp. - Phoenix Prospect Outer Continental Shelf (OCS) Final Permit Documents