Environmental Protection Agency

By Telephone:
Call our toll-free line between the hours of 8:00 am and 6:00 pm (EST) at 888-890-1995.

By E-mail:
Send e-mail correspondence to EPACDX@CSC.COM.

By Mail:

U.S. Environmental Protection Agency
C/O Computer Sciences Corporation
8400 Corporate Drive, Suite 500
New Carrollton, Maryland 20785

Contact Form

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Please help us answer your request by including a correct e-mail address. We have answered thousands of requests, but we receive many messages that we can't respond to because of incorrect email addresses. Also, if you are referring to a specific page within the EPA CDX web site, please include a URL or title for the page. If your browser doesn't support forms, you can e-mail your comment to us at EPACDX@CSC.COM.