An official website of the United States government.

Renewable Fuel Standard Program

Contact Us About Renewable Fuel Standards

On this page:

Fuels Program Helpdesk

Email  Fuels Program Helpdesk
Phone number 1-800-385-6164
Type of assistance
  • Registration
  • Program Regulations
  • Remedial Actions
  • Public data

CDX Helpdesk

Email helpdesk@epacdx.net
Phone number 1-888-890-1995, then select Option 1
Type of assistance
  • CDX account password resets
  • Lexis/Nexis authentication
  • Updates to CDX account information

CDX Node Support

Email nodehelpdesk@epacdx.net
Phone number 1-888-890-1995, then select Option 2
Type of assistance
  • Setting up a new node
  • Acquiring a NAAS ID
  • Troubleshooting nodes
  • Failed node submissions

Fuels Program Mailing Addresses

US Postal Service*
(Mail)
Commercial Delivery 
(FedEx, UPS, etc.)

U.S. Environmental Protection Agency
Mail Code 6405A
1200 Pennsylvania Ave NW
Washington, DC 20460

U.S. Environmental Protection Agency
William Jefferson Clinton Building - North
Mail Code 6405A, Room 5512D; (202) 343-9038
1200 Pennsylvania Ave NW
Washington, DC 20004

*NOTE: Sending paperwork via US Postal Service will require an irradiation process and could possibly delay delivery.

 


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Report possible violations of environmental laws and regulations.

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