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EPA denies petition to revoke 2,4-D

After considering public comment and all available studies, EPA has denied the Natural Resources Defense Council’s (NRDC) petition to revoke all tolerances and cancel all registrations of 2,4-dichlorophenoxyacetic acid (2,4-D), a phenoxy herbicide and plant growth regulator that has been used in the U.S. since the 1940s. It is currently found in approximately 600 products registered for agricultural, residential, industrial and aquatic uses. The NRDC had filed the petition in November 2008.

In 2005, as part of the regulatory process to ensure pesticides meet current regulatory standards, EPA completed a review on the registration and safety of the tolerances for 2,4-D. The agency determined that all products containing 2,4-D were eligible for re-registration, provided certain changes were incorporated into the labels and additional data were generated and submitted to the EPA for review.


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