An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Greenhouse Gas Reporting Program (GHGRP)

Information Sheet: Subpart CC - Soda Ash Manufacturing

The Subpart CC (Soda Ash Manufacturing) information sheet is intended to assist reporters in understanding the key requirements of the Greenhouse Gas Reporting Program.  It contains information on how this source category is defined, the greenhouse gases required to be reported, how emissions must be calculated, what information must be reported, when and how reports are submitted, and under what circumstances a facility may stop reporting. The complete list of data elements that must be reported and records that must be retained under 40 CFR Part 98 are available in the e-CFR.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.