Prop 65
Proposition 65 List – Updated

Foggy California bay at sunset

What a Difference A Day Makes

Recently at a ballroom dance lesson, I heard the song “What a Difference a Day Makes”. A young couple is using it as their wedding song. They were learning a dance using it for the reception. Listen here to the 1959 version by Dinah Washington. Not only did the melody and words stay with me, but so did the title. Keeping in mind how things can change in a day I wanted to follow up on my blog “Extra! Extra! Read all About it: California Proposition 65 List Updated” from April 2016. A bit more than a day later but you get the point.

It turns out the Safe Drinking Water and Toxic Enforcement Act of 1986 or as it is more commonly known Prop 65 was updated seven times since my blog in April. The list has to be revised and republished at least once per year. California’s Office of Environmental Health Hazard Assessment (OEHHA) is the agency responsible for Prop 65 implementation. They consider adding chemicals to the list when some other “authoritative body” makes a determination regarding a substances ability to cause cancer, birth defects or other reproductive harm. Shown below are all of the new substances that were added by month. They are listed by name, type of toxicity and Chemical Abstracts Service Registry Number (CAS).

Proposition 65 – New Substances

May 2016

  • Malathion for cancer with CAS 121-75-5
  • Parathion for cancer with CAS 56-38-2
  • Tetrachlorvinphos for cancer with CAS 22248-79-9

July 2016

  • Atrazine for developmental and female reproductive effects with CAS 1912-24-9
  • Bromodichloroacetic acid for cancer with CAS 71133-14-7
  • Des-ethyl atrazine (DEA) for developmental and female reproductive effects with CAS 6190-65-4
  • Des-isopropyl atrazine (DIA) for developmental and female reproductive effects with CAS 1007-28-9
  • 2,4-Diamino-6-chloro-s-triazine (DACT) for developmental and female reproductive effects with CAS 3397-62-4
  • Propazine for developmental and female reproductive effects with CAS 139-40-2
  • Sedaxane for cancer with CAS 874967-67-6
  • Simazine for developmental and female reproductive effects with CAS 122-34-9

August 2016

  • 1-Bromopropane (1-BP) for cancer with CAS 106-94-5

September 2016

  • Furfuryl alcohol for cancer with CAS 98-00-0

October 2016

  • Pentachlorophenol and by-products of its synthesis (complex mixture) for cancer. This chemical has no specific CAS number.

January 2017

  • Pertuzumab for developmental effects with CAS 380610-27-5
  • Vismodegib for developmental, female and male reproductive effects with CAS 879085-55-9

July 2017

  • Glyphosate for cancer with CAS 1071-83-6
  • Pentabromodiphenyl ether mixture [DE-71 (technical grade)] for cancer. This chemical has no specific CAS number.

There is no requirement to include Prop 65 information on OSHA HazCom 2012 labels or Safety Data Sheets (SDS). However, many companies chose to include it in Section 15 under Regulatory Information. For access to the entire current list, last updated on July 7, 2017, click here.

Should you have any questions regarding how to list Prop 65 information on your SDS documents or any other regulatory, SDS or label questions, contact us at 1.888.442.9628 (US) or 1.888.977.4834 (Canada).

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