Proposition 65 – Safe Drinking Water and Toxic Enforcement
Act – is a California state regulation enacted in November 1986.
The regulation requires businesses to provide warnings on
products or in establishments about significant exposures to chemicals, listed
under Proposition 65, that cause cancer, birth defects, or other reproductive
harm. The intent is by requiring this information is provided, the public can
make informed decisions about their exposure to these chemicals.
In addition, proposition 65 prohibits California businesses
from knowingly discharging significant amounts of listed chemicals into sources
of drinking water.
Frequently Asked Questions:
does a Proposition 65 Warning Mean?
You may see a warning placed on a product label or posted or
distributed at a workplace, business, or in rental housing. If a warning is
provided, the business issuing the warning is aware or believes that it is
exposing individuals to one or more Proposition 65 listed chemicals.
Chemicals are included in the Proposition 65 List?
The California Office of Environmental and Health Hazard
Assessment (OEHHA) publishes the Proposition 65 list of chemicals known to
cause cancer, birth defects or other reproductive harm. Since the regulation’s
inception in 1986, the list has grown to include approximately 900 chemicals.
There is a
wide range of naturally occurring and synthetic chemicals including additives
or ingredients in pesticides, common health products, food, drugs, dyes, or
solvents. These may also be used in manufacturing, construction, or they may be
byproducts or chemical processes, such as motor vehicle exhaust.OEHHA Prop 65 Chemicals List
is Responsible for Deciding if a Warning is Necessary?
The Proposition 65 regulation leaves the determination of
providing a warning to the business. The warning regulation does not explain
how a business can assess if a warning is appropriate and it does not mandate
businesses to perform testing. Testing for all, approximately 900, chemicals
under Proposition 65 would not be obtainable.
To try and provide further guidance, the OEHHA sets safe
harbor levels and safe use determinations on Proposition 65 exceptions.
Safe Harbor Levels include No Significant Risk Levels for
cancer-causing chemicals and Maximum Allowable Dose Levels for chemicals
causing reproductive toxicity. Several Proposition 65 chemicals have Safe Harbor
Levels. Exposure levels and discharges to drinking water sources below the safe
harbor levels are exempt from requirement of Proposition 65. There is no
regulatory guidance on assessing safe harbor levels. The responsibility to
determine if the exposure level falls below the safe harbor levels lies with
Side-by-Side Regulation Comparison
OEHHA Prop 65 Chemicals List
OEHHA Notice of Adoption of Article 6
OEHHA Modified Article 6 Q&A for Businesses
WQA Proposition 65 Factsheet
WQA Radio Episode 71 (05/31/2018) - Interview with CA Lobbyist, Randy Pollack on Proposition 65
Radio Episode 77 (07/11/2018) - Regulatory
Update with Kathleen Fultz on Proposition 65 (at 9:42 mark
Government Affairs Monthly Updates
2016 Government Affairs Annual Report (Proposition 65 summary on page 8)
2015 Government Affairs Annual Report (Proposition 65 summary on page 7)