Announcement of the Carcinogen Identification Committee Meeting Scheduled for November 1, 2018 and Availability of Hazard Identification Materials for N-Nitrosohexamethyleneimine and Gentian Violet

The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) is the lead agency for the implementation of the Safe Drinking Water and Toxic Enforcement Act of 1986[1] (Proposition 65).  The Carcinogen Identification Committee (CIC) advises and assists OEHHA in compiling the list of chemicals known to the state to cause cancer as required by Health and Safety Code section 25249.8.  The Committee serves as the state’s qualified experts for determining whether a chemical has been clearly shown through scientifically valid testing according to generally accepted principles to cause cancer.

N-Nitrosohexamethyleneimine and gentian violet will be considered for possible listing by the CIC at a public meeting scheduled for Thursday, November 1, 2018.  The meeting will be held in the Sierra Hearing Room at the CalEPA Headquarters building, 1001 I Street, Sacramento, California.  The meeting will begin at 10:00 a.m. and will last until all business is conducted or until 5:00 p.m.  The agenda for the meeting will be provided in a future public notice published in advance of the meeting.

OEHHA announces the availability for public review of the hazard identification documents entitled: “Evidence on the Carcinogenicity of N-Nitrosohexamethyleneimine” and “Evidence on the Carcinogenicity of Gentian Violet”.  The CIC will consider these documents in making any listing decisions on N-nitrosohexamethyleneimine and gentian violet at its November 1, 2018 meeting.  In preparing these documents, OEHHA issued a request for information relevant to the evidence of carcinogenicity of N-nitrosohexamethyleneimine and gentian violet.  The data call-in period for this request for information opened on April 6, 2018 and closed on May 21, 2018.  No submissions were received. 

Copies of the hazard identification documents are available from OEHHA’s web site at  The documents may also be requested from OEHHA’s Proposition 65 Implementation Office by calling (916) 445-6900.

This notice marks the beginning of a 45-day public comment period on these documents.  OEHHA must receive comments and any supporting documentation by 5:00 p.m. on Monday, October 1, 2018.  All timely filed public comments will be provided to CIC members in advance of the meeting.  The public is also able to make oral comments at the meeting.  Public comments at the meeting will be limited to five minutes per commenter, except for those commenters who make requests by October 2, 2018 and receive approval from the Chair for longer comments.  If you would like to make public comments to the Committee exceeding five minutes, please submit a request with an estimate of the time you will need and the reason you are requesting additional time, to the Proposition 65 mailbox at or call the Proposition 65 Implementation Office at (916) 445‑6900 by 5:00 p.m. on October 1, 2018.   

Comments on the hazard identification documents may be submitted electronically through our website at  Comments submitted in paper form can be mailed, faxed, or delivered in person to the address below.  

Mailing Address:
Michelle Ramirez
Office of Environmental Health Hazard Assessment
P.O. Box 4010, MS-12B
Sacramento, California 95812-4010

Street Address:
1001 I Street
Sacramento, California 95814

Fax: (916) 323-2265

Comments received during the public comment period will be posted on the OEHHA website in advance of the meeting.  Electronic files submitted should not have any form of encryption because OEHHA is subject to the California Public Records Act and other laws that require the release of certain information upon request.  If you provide comments, please be aware that your name, address and e-mail may be available to third parties.

If you have any questions, please contact Michelle Ramirez at or (916) 445-6900.

Footnotes and References

[1] Health and Safety Code section 25249.5 et seq.