The EPA strives to help the regulated community understand, implement and comply with federal regulations. The Agency employs a variety of means to achieve these goals. EPA dockets and information centers serve as repositories for information related to the rulemaking process. Legal standards, thresholds and limits are established. Guidance documents are issues to offer direction in following regulations. Compliance reports are gathered to ensure that regulations are being obeyed. And, finally, legal action is undertaken to pursue those who do not fully comply with the requirements of environmental legislation.

Recommended EPA Web pages

• OAR Policy and Guidance Information
  The OAR Policy and Guidance Web site is designed to provide access to rules, policy, and guidance documents produced by the USEPA Office of Air and Radiation.
• OAR Policy and Guidance: Recent Actions
  This page provides quick and easy access to recent regulations, and policy and guidance documents issued by EPA's Office of Air and Radiation.
• Air and Radiation: Regulations and Statutes
  Provides information about air and radiation regulations and statutes.

Air Pollution
Certification Programs, Community Involvement, Industrial Air Pollution, New Source Review, Research, State Implementation Plans, Stationary Sources, Testing, Transboundary Pollution, Urban Air Pollution

Air Pollution Control
Abatement, Remediation, Treatment

Air Pollution Effects
Acid Rain, Climate Change, Economic Effects, Environmental Effects, Global Warming, Health Effects, Heat Island Effect, Risk Assessment

Air Pollution Legal Aspects
Compliance, Enforcement, Guidance, Legislation, Permits, Public Comment, Regulations, Reporting, Standards

Air Quality
Air Quality Criteria, Attainment, Early Action Compacts, Emission Factor, Emission Inventory, Emissions, Emissions Measurement, Emissions Trading, Measurement, Models, Monitoring, Nonattainment

Atmosphere
Carbon Sequestration, Climate Change, Global Warming, Ground Level Ozone, Ozone Depletion, Ozone Layer, Ozone Monitoring, Ozone Transport, Smog, Ultraviolet Radiation (UV)

Indoor Air Pollution
Building Related Illness, Carbon Monoxide, Environmental Tobacco Smoke, Fireplaces, Mercury, Mold, Radon, Sick Building Syndrome, Stoves, Vermiculite, World Trade Center Dust Cleanup

Mobile Sources
Airplanes, Automobiles, Diesels, Engines, Fuels, Inspection and Maintenance, Lawn and Garden Equipment, Locomotives, Marine Engines, Motorcycles, Trucks and Buses, Used Oil Recycling, Vehicle Emissions