California Prop 65 Warnings

What California Proposition 65 requires, what a Prop 65 warning means, and where you will find warnings on products from The Lab Stockroom, formerly hBARSCI.

What Is Proposition 65?

Proposition 65, formally the Safe Drinking Water and Toxic Enforcement Act of 1986, is a California law approved by voters in November 1986. It requires the State of California to publish a list of chemicals known to cause cancer, birth defects, or other reproductive harm. The list is updated at least once a year and includes more than 800 chemicals.

The law requires businesses to provide a clear and reasonable warning before knowingly and intentionally exposing anyone in California to a listed chemical. Listed chemicals include a wide range of metals, plastics, dyes, solvents, and other substances, both naturally occurring and synthetic.

Where Prop 65 Warnings Appear

When a product sold by The Lab Stockroom requires a Proposition 65 warning, the warning appears on that product's page, near the product details, so you can review it before you buy.

For questions about the materials or chemical composition of a specific product, contact the team with the product name or SKU.

Prop 65 Resources

The California Office of Environmental Health Hazard Assessment (OEHHA) administers Proposition 65 and publishes the official chemical list.

Prop 65 Warnings Website

Plain-language guidance on warnings, chemicals, and exposures at P65Warnings.ca.gov.

The Prop 65 Chemical List

The current list of chemicals is published by OEHHA at OEHHA.ca.gov.

For general information about the Proposition 65 list, OEHHA can be reached at (916) 445-6900.

Prop 65 FAQs

What Does a Prop 65 Warning Mean?

According to the California Office of Environmental Health Hazard Assessment (OEHHA), a Proposition 65 warning means the business is aware of or believes that it is exposing individuals to one or more chemicals on the Proposition 65 list.

Why Do Some Products Show a Prop 65 Warning and Others Do Not?

The Lab Stockroom displays a Proposition 65 warning on the product page of each item it has identified as requiring one. Products without a warning on the product page have not been identified as requiring one.

Is Proposition 65 a Federal Law?

No. Proposition 65 is a California state law administered by the California Office of Environmental Health Hazard Assessment (OEHHA).

How Can I Get Information About a Specific Product?

Contact The Lab Stockroom at service@thelabstockroom.com or (585) 360-2295 with the product name or SKU. Safety Data Sheets for chemical products are available on product pages or by request.

Questions About a Product?

Contact the team about product materials or Safety Data Sheets, Monday through Friday, 8:00 AM to 4:00 PM ET.