The Safer Consumer Products regulations require DTSC to post an informational list of
Candidate Chemicals and to update the list periodically. (Cal. Code Regs, tit. 22, §
69502.3, subd. (a)). This list includes the chemical name, the Chemical Abstracts
Service Registry Number (if applicable), the basis for listing the Candidate
Chemical (hazard trait
and authoritative list name),
and the group name (if applicable).
Chemicals that exhibit a hazard trait and/or environmental or toxicological endpoint and are listed on one or
more of the lists identified in section 69502.2(a) of title 22 of the California Code of Regulations are Candidate
Chemicals. These are the chemicals that are identified on the informational Candidate Chemicals list. In the event
there is a discrepancy between the criteria in section 69502.2 and the informational Candidate Chemicals list, the
The Chemical Abstracts Service Registry Numbers (CAS RNs) are listed as they are identified on the source list,
therefore, a chemical may be identified using a synonymous name, and searching by CAS number whenever possible is
For a summary of Authoritative List revision dates, and the date of the last major update to the Candidate
Chemicals list, please review our Authoritative List webpage.