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 This website is no longer updated and links to external websites and some internal pages may not work.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

How may state and local rules be more stringent?

In what ways may state and local rules be more stringent? Does this document (General Risk Management Program Guidance) provide guidance on state and local differences?

States and localities may impose more detailed requirements, such as requiring more documentation or more frequent reporting, specifying hours of training or maintenance schedules, imposing equipment requirements or call for additional analyses. Some states and localities are likely to cover at least some additional chemicals and may use lower thresholds. This document does not cover these differences.