Frequent Questions

What are Harmonized Test guidelines?

The Office of Prevention, Pesticides and Toxic Substances (OPPTS) has developed these guidelines through a process of harmonization that blended the testing guidance and requirements that existed in the Office of Pollution Prevention and Toxics (OPPT) and appeared in title 40, chapter I, subchapter R of the Code of Federal Regulations (CFR), the Office of Pesticide Programs (OPP) which appeared in publications of the National Technical Information Service (NTIS), and the guidelines published by the Organization for Economic Cooperation and Development (OECD).Series: The OPPTS harmonized guidelines are organized in the following 10 series:

810 - Product Performance Test Guidelines

830 - Product Properties Test Guidelines

835 - Fate, Transport and Transformation Test Guidelines

840 - Spray Drift Test Guidelines

850 - Ecological Effects Test Guidelines

860 - Residue Chemistry Test Guidelines

870 - Health Effects Test Guidelines

Test Guidelines/Acute Toxicity - Acute Oral Toxicity Up-And-Down-Procedure

875 - Occupational and Residential Exposure Test Guidelines

880 - Biochemicals Test Guidelines

885 - Microbial Pesticide Test Guidelines

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