Proposition 65 Changes to the Proposition 65 List Addition of Isopyrazam (CAS No. 881685-58-1) and 3,3',4,4' Tetrachloroazobenzene (CAS No. 14047-09-7)Follow this link to download the current Proposition 65 list that includes Isopyrazam (CAS No. 881685-58-1) and 3,3',4,4' Tetrachloroazobenzene (CAS No. 14047-09-7)
If you would like to sort the list by CAS number or date, please download the list as an Excel document. You can then sort the list by date, CAS number, or chemical name using MS Excel. The Excel document also includes the listing mechanism for each chemical listing and the safe harbor level, if one has been adopted. A hyperlink is provided for those chemicals for which the basis for listing documentation is available electronically. A hyperlink is provided for those safe harbor levels for which the risk assessment documentation is available electronically.
Effective July 24, 2012, the Office of Environmental Health Hazard Assessment (OEHHA) is adding two chemicals, isopyrazam (CAS No. 881685-58-1) and 3,3’,4,4’‑tetrachloroazobenzene (CAS No. 14047-09-7), to the list of chemicals known to the State to cause cancer for purposes of the Safe Drinking Water and Toxic Enforcement Act of 1986 (commonly known as Proposition 651).
The criteria used by OEHHA for the listing of chemicals under the “authoritative bodies” mechanism can be found in Title 27, Cal. Code of Regs., section 25306. The listing of isopyrazam is based on formal identification by an authoritative body2, the U. S. Environmental Protection Agency, that the chemical causes cancer. The listing of 3,3’,4,4’-tetrachloroazobenzene is based on formal identification by an authoritative body, the National Toxicology Program, that the chemical causes cancer.
The documentation supporting OEHHA’s determination that the criteria for administrative listing have been satisfied for the chemicals isopyrazam and 3,3’4,4’‑tetrachloroazobenzene is included in the Notice of Intent to List these chemicals published in the May 25, 2012 issue of the California Regulatory Notice Register (Register 2012, No. 21‑Z).
A complete, updated chemical list is published in this issue of the California Regulatory Notice Register and is available on the OEHHA website at www.oehha.ca.gov.
In summary, isopyrazam and 3,3’,4,4’-tetrachloroazobenzene are being listed under Proposition 65 as known to the State to cause cancer.
1Health and Safety Code section 25249.5 et seq.
2See Health and Safety Code, section 25249.8(b) and Title 27, Cal. Code of Regs., section 25306.
