The body responsible for conducting risk assessments of pesticides for regulatory purposes is the Joint FAO/WHO Meeting on Pesticide Residues, or the “JMPR” for short.
The Joint FAO/WHO Meeting on Pesticide Residues reviewed 2,4-D most recently in 1996/97. Previously 2,4-D was reviewed in 1970, 1971, 1974, and 1975. 2,4-D was tested for a wide range of health impacts. The JMPR continues to conclude that 2,4-D is not genotoxic and that there is no evidence of carcinogenicity.