Chemicals Listed Effective March 5, 1999 as Known to the State to Cause Reproductive Toxicity: Diclofop methyl and Hydramethylnon (Amdro)

The Office of Environmental Health Hazard Assessment (OEHHA) of the California Environmental Protection Agency has added the two chemicals named below to the list of chemicals known to the State to cause reproductive toxicity, for purposes of the Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65 or the Act). These chemicals are listed effective March 5, 1999. The two chemicals are listed pursuant to an administrative mechanism provided under the Act, based upon a formal identification by an authoritative body that the chemical causes reproductive toxicity. Regulations governing the listing of chemicals under the "authoritative bodies" mechanism are published in Title 22, California Code of Regulations, Section 12306.

The reader is directed to the Notice of Intent to List Chemicals published in the December 4, 1998 issue of the California Regulatory Notice Register for the supporting documentation which OEHHA relied upon in making its determination that the criteria for administrative listing have been satisfied. A complete, updated chemical list is published elsewhere in this issue of the California Regulatory Notice Register.

The two chemicals listed effective March 5, 1999, and the mechanism under which each is listed is shown below:

Known to cause reproductive toxicity:

Chemical CAS No. Toxicological Endpoints Listing Mechanism1
Diclofop methyl 51338-27-3 Developmental toxicity AB
Hydramethylnon (Amdro) 67485-29-4 Developmental toxicity
Male reproductive toxicity
AB

Footnotes and References

1Listing mechanism:

AB - "authoritative bodies" mechanism (22 CCR, Section 12306)