In 1986, California voters addressed growing concerns over toxic chemical exposure. The resulting initiative was coined the Safe Drinking Water and Toxic enforcement as of 1986, commonly referred to as Proposition 65. The mandate requires the State of California to curate a list of chemicals known to cause cancer, birth defects, or reproductive harm. Since 1987, the annual update list has grown to over 800 chemicals. Proposition 65 guidelines require disclosure of any significant amount of listed chemicals found in homes, the workplace, or other environments.
Proposition 65 PDF
- Article 1. Preamble and Definitions
- Article 2. Guideline and Safe Use Determination Procedures
- Article 3. Science Advisory Board: Carcinogen Identification Committee and Developmental and Reproductive Toxicant (Dart) Identification Committee
- Article 4. Discharge
- Article 5. Extent of Exposure
- Article 6. Clear and Reasonable Warnings
- Article 7. No Significant Risk Levels
- Article 8. No Observable Effect Levels
- Article 9. Miscellaneous
New Requirements for Proposition 65 Warnings
- A graphic depiction of a yellow triangle containing an exclamation point.
- Specify at least one chemical for which the warning is being provided if the label is not included in the product or packaging.
- Include the website:
What Exemptions Does Proposition 65 Apply?
- Businesses with less than 10 employees
- Businesses are exempt from warning requirements if discharge levels are low enough that they create no significant risk of cancer, birth defects, or reproductive harm.
- Government agencies
What Are Safe Harbor Numbers?
Acceptable Risk Levels
The acceptable level of cancer-causing chemicals is designated by NSRL (No Significant Risk Levels). For chemicals known to threaten reproductive health, the risk level is determined by Maximum Allowable Dose Levels (MADLS)
- § 25701. General
- § 25703. Quantitative Risk Assessment.
- § 25705. Specific Regulatory Levels Posing NO Significant Risk.
- § 25707. Routes of Exposure.
- § 25709. Exposure to TRACE Elements.
- § 25711. Levels Based on State or Federal Standards.
- § 25713. Exposure to Food, Drugs, Cosmetics and Medical Devices. [Repealed]
- § 25721. Level of Exposure to Chemicals Causing Cancer.