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Prop 65 Certificate of Compliance

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Update time : 2026-09-09

California Proposition 65 certification, also known as the Safe Drinking Water and Toxic Enforcement Act of 1986, referred to as "Prop 65", is a regulation aimed at protecting California residents and drinking water sources from harmful chemicals. The regulation requires businesses to provide clear and reasonable warning labels if their products may contain chemicals known to cause cancer, birth defects, or other reproductive toxicity.


Testing Items

prop 65 certification primarily tests for the following harmful chemicals in products:

Heavy Metals:

  • Lead (Pb): Commonly found in metal accessories, coatings, and plastic additives. The limit is typically 100ppm (specific limits may vary by product type).

  • Cadmium (Cd): Commonly found in pigments, plastic stabilizers, batteries, etc. The limit is typically 300ppm.

  • Mercury (Hg): Commonly found in electronic components, fluorescent lamps, etc. The limit is typically 1000ppm.

Phthalates:

Commonly found in PVC plastics, rubber, coatings, etc. The test primarily covers DEHP, BBP, DBP, DIDP, DnHP, etc. The limit is typically 1000ppm.

BISphenol A (BPA):

Commonly found in polycarbonate plastics, epoxy resin coatings, etc. Limits are typically determined based on the product type and exposure risk.


Formaldehyde:

Commonly found in textiles, furniture, building materials, etc. The limit is typically 20ppm (children's products) or 75ppm (adult products).

Polycyclic Aromatic Hydrocarbons (PAHs):

Commonly found in rubber, plastics, lubricating oils, etc. Limits depend on the specific compounds and product types.


Certification Process

  • Understand Regulatory Requirements:
    Businesses must thoroughly understand the specific requirements of Proposition 65, including restricted chemicals, as well as the format and content of warning messages.

  • Product Testing:
    Submit product samples to a qualified third-party laboratory for chemical testing to determine whether they contain restricted chemicals and whether the content complies with regulatory requirements.

  • Prepare Application Documents:
    Based on the test results, prepare detailed application documents, including but not limited to:

  • Product description (function, purpose, materials, etc.).

  • Testing report (issued by a third-party laboratory).

  • Bill of Materials (BOM, listing all materials and their chemical composition).

  • Product instruction manual (must include information on hazardous substances).

  • Warning label design draft (must comply with Prop 65 format requirements).

  • Certification application form (filled out completely and signed for confirmation).

  • Submit Application:
    Submit the prepared application documents to the California Office of Environmental Health Hazard Assessment (OEHHA) or its designated certification body for review.

  • Review and Certification:
    The certification body reviews the application documents to verify the accuracy of product ingredients, test results, and warning information. If the product passes the review, the certification body will issue a Prop 65 certificate of compliance, and the business can place the corresponding warning label on the product.


Required Documents

  • Product Samples: Provide 2-3 sets of representative samples for chemical testing.

  • Product Instruction Manual: Detailed description of the product's function, usage methods, and any potential hazardous substance information involved.

  • Bill of Materials (BOM): List all materials and components used in the product manufacturing process, including their chemical composition and sources.

  • Testing Report: A chemical testing report issued by a third-party laboratory, proving that the content of hazardous substances in the product complies with regulatory requirements.

  • Certification Application Form: Filled out completely and signed for confirmation, providing accurate product information and contact details.

  • Warning Label Design Draft: Design an appropriate warning label in accordance with Prop 65 requirements, ensuring consumers can clearly understand potential risks before purchasing.


Certification Cycle

The cycle for Prop 65 certification varies depending on the product type, complexity, and the business's level of preparation. It generally includes the following stages:

  • Product Assessment and Risk Assessment: 1-4 weeks.

  • Document Preparation and Testing: 2-6 weeks.

  • Application Submission and Review: 4-6 weeks.

The entire certification cycle typically ranges between 8 to 16 weeks. If a business wishes to shorten the cycle, they can:

  • Prepare complete application materials in advance.

  • Choose a laboratory with rapid testing capabilities.

  • Maintain close communication with the certification body and respond promptly to requests for supplementary materials.


Important Notes

  • Regulatory Updates:
    The Prop 65 list is updated quarterly. Businesses must continuously monitor regulatory dynamics and promptly adjust product formulas or labels.


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