Authoritative Bodies Tracking Table

The following table contains information on the status of chemicals considered by OEHHA for addition to the Proposition 65 list under the authoritative bodies mechanism (  The table lists the authoritative body, the document or documents providing the basis for the possible listing, the endpoint (toxic effect) relevant to the possible listing, and the next step in the listing process.  OEHHA will update this table on a regular basis.  Please email any questions to OEHHA at, or you may call the OEHHA Proposition 65 Implementation Office at 916-445-6900.

Chemicals Under Consideration for Proposition 65 Listing via the Authoritative Bodies Mechanism
(Updated September 13, 2018)

Chemical/CAS No.



Basis Documents


Next Step


Due by

Cobalt metal (covering respirable airborne particulates)



Toxicology Studies of Cobalt Metal (CAS No. 7440-48-4) in F344/N Rats and B6C3F1/N Mice and Toxicology and Carcinogenesis Studies of Cobalt Metal in F344/NTac Rats and B6C3F1/N Mice (Inhalation Studies) NTP (2014)

OEHHA has determined cobalt metal (respirable airborne particulates) is covered under the existing listing of cobalt metal powder.

None required



Developmental, male and female reproductive toxicity


Toxicological Review of Benzo[a]pyrene [CASRN 50-32-8]

US EPA (2017)

Evaluating under Title 27, Cal. Code of Reg. section 25306.

Decide whether to issue a Notice of Intent to List

January 2, 2019

p-Chloro-α,α,α-trifluorotoluene (para-Chlorobenzo-trifluoride, PCBTF) (98-56-6)



NTP Technical Report on the Toxicology and Carcinogenesis Studies of p-Chloro-α,α,α-Trifluorotoluene in Sprague Dawley Rats (Hsd:Sprague Dawley SD) and B6C3F1/N Mice (Inhalation Studies) NTP (2018)

Notice of Intent to List issued November 23, 2018

Reviewing comments

January 23, 2020


IARC: International Agency for Research on Cancer

NTP: National Toxicology Program

US EPA: US Environmental Protection Agency