How to Conduct a GLP Study Under EPA FIFRA
Run a pesticide safety study under the EPA regime, which is not the FDA one.
What a how-to is not
A how-to is SPEQ’s practitioner method, not a procedure. It does not replace your own SOP, it is not a validated approach, and the judgement calls in it belong to your quality unit.
The United States has more than one good laboratory practice regulation. Studies supporting pesticide registration fall under the Environmental Protection Agency’s standards rather than the Food and Drug Administration’s, and although the two are closely aligned they are separate legal instruments with their own scope, their own enforcement and their own statements. Assuming one covers the other is a scope error that survives casual review because both are real and both are called GLP.
- 1
Confirm which regime the study falls under before designing it
The determining question is what the study supports — a pesticide registration or a medicinal product application — not which laboratory runs it. A contract facility may run both regimes, and the study, not the site, determines which applies.
- 2
Scope the studies that must comply
The requirement reaches health effects, environmental fate and effects, and residue chemistry studies supporting registration. Efficacy work generally sits outside it, and a facility that applies the standard indiscriminately spends effort where the regulation does not reach.
- 3
Prepare the statements the submission requires
Submissions carry compliance statements from the sponsor, the study director and the submitter. These have no direct counterpart elsewhere and are commonly the first thing missing when a team arrives from the pharmaceutical side.
- 4
Apply the study-conduct architecture in the same way
Study director, quality assurance unit, protocol, characterised test substance, raw data, archives. The architecture is familiar; do not let the familiarity obscure that the citations, the enforcement authority and the statements differ.
- 5
Handle environmental and residue work on its own terms
Field studies, environmental fate work and residue trials raise problems the toxicology model does not — site control, weather, sampling across locations, chain of custody over distance. Treat them as study conduct, not logistics.
- 6
Track international acceptance separately
Where a study is intended for use in more than one country, confirm the accepting authority recognises the programme the facility is monitored under. Compliance under one regime does not automatically carry, and finding out afterwards means repeating the work.
- !The FDA regulation cited for a pesticide registration study because both are called GLP.
- !The standard applied to efficacy work the regulation does not reach, spending effort outside scope.
- !Submission compliance statements omitted because they have no counterpart in the pharmaceutical regime.
- !Multi-country acceptance assumed, so a study is completed and then found not to travel.
How to Conduct a GLP Study Under EPA FIFRA: frequently asked questions
Common questions on conduct a glp study under epa fifra.
How do I know which US regulation applies?
By what the study supports. A study supporting pesticide registration falls under the EPA standards; one supporting a medicinal product application falls under the FDA regulation. The laboratory does not determine it — the same facility can run studies under both, and each study is scoped by its purpose.
Which studies have to comply?
Health effects, environmental fate and effects, and residue chemistry studies supporting registration. Efficacy work generally falls outside. Applying the standard to everything is not a safe default; it is effort spent where the regulation does not reach, and it can obscure where it does.
What is different in practice from a pharmaceutical toxicology study?
The submission compliance statements, the enforcement authority, and the nature of the work — field, environmental fate and residue studies raise site control, weather, multi-location sampling and long-distance chain of custody, none of which the enclosed toxicology model prepares you for.