View frequent questions
Find answers to frequently asked questions.
Ask a question
Fill out the form to ask a question.
Contact us by mail or fax
Office of Air Quality Planning and Standards (OAQPS)
Information Transfer Group
Mail Code C404-07
Research Triangle Park, NC 27711
Contact the Office of Indoor Air
For questions or comments regarding indoor air quality such as mold, radon, asthma, second-hand smoke and air cleaning devices, please contact the U.S. EPA Office of Indoor Air Quality.
Submit an environmental complaint
Please contact your local air pollution agency. (Exit AirNow)
You can order publications directly via EPA's National Service Center for Environmental Publications (NSCEP) (https://www.epa.gov/nscep) web site. Your publication requests can also be mailed, called or faxed directly to:
U.S. EPA, National Center for Environmental Publications (NSCEP)
P.O. Box 42419
Cincinnati, Ohio 45242-0419
Phone (800) 490- 9198
Fax (301) 483-8659
Please use the EPA Document Number when ordering from NSCEP.