Contact Us About Clearinghouse for Inventories and Emissions Factors

Send your questions or comments to Chief_info@epa.gov, or use the form below. Be sure to include your e-mail address if you’d like a response. Including specific details in your questions may help us provide a more focused and applicable response.

Mailing Address: 
US EPA/OAQPS
109 TW Alexander Drive
Research Triangle Park, NC 27711