The Department of Health and Human Services (HHS) and the Environmental Protection Agency (EPA) have signed an agreement to jointly study the health effects of glyphosate, the world's most widely used weed killer. The memorandum of understanding, announced September 22, creates a joint technical working group to feed research into EPA's ongoing review of the chemical. EPA expects to finish its updated human health risk assessment and cancer evaluation in early 2027.
The review could shape how glyphosate is used on farms, lawns, and food crops for years. For households, it bears on dietary exposure, including residues from spraying crops shortly before harvest. The agreement itself does not change any rules, labels, or permitted uses, and the agencies said it does not predetermine the outcome of EPA's review.
