Proposition 65

WARNING: This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm.

The California Safe Drinking Water and Toxic Enforcement Act of 1986, also known as Proposition 65, requires businesses in certain circumstances to provide warnings for products containing chemicals that California has identified as carcinogens or reproductive toxins.

There are about 900 chemicals on the Proposition 65 list.  The list includes lead, certain plasticizers like di(2-ethylhexyl) phthalate and certain flame retardants like TDCPP.  The Proposition 65 list also includes aspirin, alcoholic beverages, Chinese-style salted fish and wood dust.

OEHHA is the California Office of Environmental Health Hazard Assessment. OEHHA is the California agency that identifies chemicals for the Proposition 65 list.  OEHHA's mission is to protect and enhance public health and environment by scientific evaluation of risks posed by hazardous substances. To learn more about OEHHA go to their website at WWW.OEHHA.CA.GOV.

OEHHA adds chemicals to the Proposition 65 on a regular basis.  For example, the flame retardant known as TDCPP was added to the list as a carcinogen on October 28, 2011, which means that the warning requirement for the chemical became effective on October 28, 2012.  Lead has been on the Proposition 65 list since 1988.

In addition to identifying chemicals for the Proposition 65 list, OEHHA also sets levels for when a warning is required.  For example, OEHHA set the warning level, also known as the “No Significant Risk Level” or “NSRL,” for TDCPP at 5.4 micrograms per day.  This means that OEHHA has determined the daily intake level of this chemical at 5.4 micrograms per day will result in one excess case of cancer in an exposed population of 100,000, assuming 70-year lifetime exposure to the chemical.

Additional information regarding Proposition 65 can be found at the OEHHA website:

Additional information regarding the California flammability standard, Technical Bulletin 117 can be found at the BHFTI website:


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