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Biological Opinion on Chlorpyrifos, diazinon, and malathion

June 22, 2022

On June 30, 2022, NOAA Fisheries gave U.S. Environmental Protection Agency its final biological opinion relative to the potential effects of the pesticides chlorpyrifos, diazinon, and malathion on threatened or endangered species & their critical habitat.

NOAA Fisheries coordinated with EPA and the registrants for all three pesticides to modify the action in order to include additional species protections or “conservation measures.” After reviewing the current status of ESA-listed species, their environmental baseline within the action area, the effects of the proposed action (including the additional conservation measures) and cumulative effects, it is the National Marine Fisheries Services’ opinion that the Environmental Protection Agency’s action in the registration of the authorized uses, as will be specified by approved product labels, of all pesticide products containing diazinon, chlorpyrifos, and malathion, is not likely to jeopardize the continued existence of species or to destroy or destroy/adversely modify the designated critical habitat of those species.

Last updated by Office of Protected Resources on 06/05/2023