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Due to a lapse in appropriations, EPA websites will not be regularly updated. In the event of an environmental emergency imminently threatening the safety of human life or where necessary to protect certain property, the EPA website will be updated with appropriate information. Please note that all information on the EPA website may not be up to date, and transactions and inquiries submitted to the EPA website may not be processed or responded to until appropriations are enacted.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Clean Air Technology Center

Contact Us about the Clean Air Technology Center and the RACT/BACT/LAER Clearinghouse

Report an environmental violation

Report possible violations of environmental laws and regulations.

Contact Information:
CATC Info-Line: (919) 541-0800 (English)
CATC/CICA Info-Line:(919) 541-1800 (Spanish)
Toll-Free from Mexico (800) 304-1115 (Spanish)
FAX: (919) 541-4991
Mailing Address:
Clean Air Technology Center
RACT/BACT/LAER Clearinghouse (RBLC)
U.S. Environmental Protection Agency 
Research Triangle Park, NC 27711
You can also use the form below to send us a question or comment. Be sure to include your e-mail address if you would like a response.