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 This website is no longer updated and links to external websites and some internal pages may not work.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

Pesticide Registration

Background on Development of Harmonized Product Chemistry Templates

During a U.S./Canada product chemistry workshop held in November 2011, EPA and PMRA noticed harmonization on many, but not all, data/guideline requirements for product-specific data. These differences, as products were reviewed by the respective countries, often created issues during the joint review process. These slides describe the new templates and how they support and streamline product chemistry reviews by multiple agencies.

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