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 This website is no longer updated and links to external websites and some internal pages may not work.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

Use of the Term "Shock" on Non-pesticide Labeling

The Agency has agreed that the use of the term "shock" in the product name is acceptable if it is immediately qualified as a "Shock Oxidizer" or "Oxidizing Shock" product. The qualifier should be in the same font size and color as the term "shock." 

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