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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

General RMP Guidance - Appendix B: Selected NAICS Codes

This appendix contains a list of selected 2002 North American Industry Classification System (NAICS) codes used by Federal statistical agencies in classifying business establishments.

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