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 This website is no longer updated and links to external websites and some internal pages may not work.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

Transportation exemption and EPCRA emergency planning

To what extent is a State required to plan if there are only a few (or no) facilities having extremely hazardous substances present in excess of threshold planning quantities, but there is significant interstate transportation of these and other hazardous substances?

While Section 327 of Title III generally exempts the transportation of hazardous materials from coverage under most Title III reporting requirements, the law does require comprehensive emergency plans that address all hazardous materials and the potential for both fixed facility and transportation incidents (Section 303).  The list of extremely hazardous substances should provide a focus and a starting point for planning.  Therefore, the transportation routes and facilities with significant inventories of hazardous substances should be considered in any plan.  Finally, Section 301 includes transportation officials among those representatives who must participate in local planning committees.