Submit a question about the GHG Publication Tool

To assist us in responding to your question as quickly as possible, please indicate the subject area of your question addressed. If you have questions on more than one subject area, please submit those questions separately.


As a reminder, please do not submit sensitive or business confidential information to the helpline. Anything you send to this address may be made available to the public.



Submit a question about e-GGRT or the GHGRP


1-877-444-1188 (toll free)
1-703-676-4400 (outside U.S.)

Mailing Address

e-GGRT Help Desk Mailing Address

The e-GGRT Help Desk is open from 9 a.m. to 5 p.m. Eastern Time, Monday through Friday except holidays.




This web site is maintained by a contractor to the U.S. Environmental Protection Agency (RY2021.R.02)