California Prop 65 Overview: What Fabric Importers Need to Know in 2026
California Proposition 65 (the Safe Drinking Water and Toxic Enforcement Act of 1986) is a California state law that requires businesses to provide warnings about significant exposures to chemicals that cause cancer, birth defects, or other reproductive harm. The list of regulated chemicals is maintained by the OEHHA (Office of Environmental Health Hazard Assessment) and currently contains over 900 chemicals. For fabric importers, Prop 65 applies to any fabric or finished textile product sold in California that contains a listed chemical at a concentration above the safe harbor level.
The importer is responsible for verifying that the fabric meets the Prop 65 requirements before the product is sold in California. The importer can be subject to enforcement action (including penalties of up to $2,500 per day per violation) if the product contains a listed chemical above the safe harbor level without the appropriate warning label. The enforcement is conducted by the California Attorney General's office, the local district attorneys, and the private plaintiffs who can sue under the Prop 65 citizen suit provision. The penalty is per violation per day, so a single shipment that violates Prop 65 can result in penalties of hundreds of thousands of dollars if the violation goes uncorrected for months.
The legal distinction between an importer and a fabric mill is critical for the compliance responsibility. The importer is the entity that brings the fabric into the US market and sells it to a downstream customer or directly to the consumer. The importer is the entity that is named on the customs entry and the entity that holds the Prop 65 compliance documentation. The fabric mill, even if it is the original manufacturer, is not directly subject to Prop 65 enforcement unless it also sells the fabric directly to a California consumer. The importer is the responsible party, and the importer is the entity that must verify the Prop 65 compliance for every shipment.
6 Restricted Substance Classes for Fabric Under Prop 65
The 6 restricted substance classes for fabric under California Prop 65 are the substance categories that the importer's third-party lab test must screen for. The 6 classes are the most common Prop 65 risk categories for fabric, and the 6 classes are the substance categories that the importer's mill should screen for in the Prop 65 substance declaration. The 6 classes are not the complete Prop 65 list (which contains over 900 chemicals), but the 6 classes are the categories that are most relevant to fabric and the categories that the importer's third-party lab typically tests for.
| Substance Class | Common Use in Fabric | Safe Harbor Level | Test Standard |
|---|---|---|---|
| 1. Formaldehyde | Wrinkle-resistant finish | 75 µg/day (MADL) | ISO 14184-1 |
| 2. Lead and lead compounds | Dyes, pigments | 0.5 µg/day (MADL) | CPSC-CH-E1001-08 |
| 3. Phthalates (DEHP, DBP, BBP, etc.) | Plasticizers, print pastes | 4.1 µg/day DEHP (MADL) | CPSC-CH-C1001-09.3 |
| 4. Cadmium and cadmium compounds | Pigments, stabilizers | 4.1 µg/day (MADL) | EN 1122 |
| 5. Azo dyes (releasing carcinogenic amines) | Reactive dyes for cellulose | 30 mg/kg per amine | ISO 16373-1 |
| 6. PFAS (PFOA, PFOS, etc.) | Water-repellent finishes | 100 ppm PFOA/PFOS (referenced) | ISO 17072-1 |
Formaldehyde (class 1) is the most common restricted substance in fabric, and is used in the wrinkle-resistant finish applied to cotton and cotton-blend fabrics. The safe harbor level is 75 micrograms per day (MADL — Maximum Allowable Dose Level), and the typical test method is ISO 14184-1 (water extraction method). Lead and lead compounds (class 2) are used in some dyes and pigments, particularly in bright red and yellow colors, and the safe harbor level is 0.5 micrograms per day (MADL). Phthalates (class 3) are used in plasticizers and print pastes, and the safe harbor level is 4.1 micrograms per day for DEHP (di(2-ethylhexyl)phthalate), with other phthalates (DBP, BBP, DINP, DIDP, DnHP) also in the MADL list.
Cadmium and cadmium compounds (class 4) are used in pigments and stabilizers, with the safe harbor level at 4.1 micrograms per day. Azo dyes (class 5) that release carcinogenic amines are restricted under California's textile regulations, with the safe harbor level at 30 mg/kg per amine. PFAS (class 6) — per- and polyfluoroalkyl substances — are used in water-repellent finishes, and the safe harbor level is referenced to 100 ppm for PFOA and PFOS combined. The 6 classes are the baseline compliance screening for fabric, and the importer's third-party lab should provide the 6-class test report for every shipment.
The 4-Step Compliance Path for Fabric Importers in 2026
The 4-step compliance path for fabric importers in 2026 is the structured process that the importer follows to verify Prop 65 compliance for each fabric shipment. The 4 steps are the operational compliance workflow that the importer follows for every shipment, and the 4 steps are the workflow that the importer's compliance team uses to maintain the documentation for the 3-year Prop 65 statute of limitations.
Step 1 — Substance screening via the mill's Prop 65 declaration
The first step is the substance screening via the mill's Prop 65 declaration. The importer requests the mill's Prop 65 substance declaration and the mill's test report for the 6 restricted substance classes. The mill's declaration should identify which of the 6 substance classes are present in the fabric, the concentration of each substance, and the test report for verification. The mill's declaration is the first layer of verification, and the mill's declaration is the document that the importer retains as part of the documentation package. The 16-year sustainable fabric mill typically maintains the Prop 65 declaration as part of the standard documentation package, and the mill's declaration is the document that the importer's compliance team uses for the initial screening.
Step 2 — Third-party lab verification
The second step is the third-party lab verification. The importer sends representative samples to a NELAC or A2LA accredited third-party lab (e.g., SGS, BV, TÜV, Intertek) for the 6 substance classes. The third-party lab should issue a test report that includes the 6 substance classes, the test method, the test result, the safe harbor level, and the pass/fail status. The third-party lab test is the second layer of verification, and the third-party lab test is the document that the importer uses to make the warning label decision. The third-party lab should be NELAC or A2LA accredited, and the third-party lab test report should be dated within 12 months of the shipment date.
Step 3 — Warning label decision
The third step is the warning label decision. If any substance exceeds the safe harbor level, the importer must apply the Prop 65 warning label per the OEHHA requirements. The OEHHA pre-approved safe harbor language reads: 'WARNING: This product can expose you to chemicals including [chemical name], which is known to the State of California to cause [cancer/birth defects or other reproductive harm]. For more information go to www.P65Warnings.ca.gov'. The warning label must be on the product packaging, on the hangtag, and on the e-commerce product page if the product is sold online. If all substances are below the safe harbor level, no warning label is required, but the importer should retain the documentation to prove the no-warning-label decision.
Step 4 — Documentation retention
The fourth step is the documentation retention. The importer retains the test reports, the warning label design, and the supply chain declarations for at least 3 years (the Prop 65 statute of limitations). The documentation package should be organized by shipment, with the test report, the warning label design, the supply chain declaration, and the sales record. The 3-year retention is the importer's last line of legal defense if a Prop 65 enforcement action is filed against the importer, and the 3-year retention is the document that the importer's legal team uses to defend the case.
2024-2025 Prop 65 Changes Affecting Fabric Importers
Two significant Prop 65 changes took effect in 2024 and 2025 that fabric importers need to know. The 2 changes require the importer to update the warning label design and to verify the new chemicals are not present in the fabric. The 2 changes are the most significant Prop 65 changes in the last 5 years, and the 2 changes are the changes that the importer's compliance team should have implemented by Q1 2025.
New short-form warning label format (effective January 1, 2025)
The OEHHA adopted new short-form warning label requirements in 2024 that mandate a specific format for the warning label, including the URL www.P65Warnings.ca.gov and the specific chemical name identification for the most common 12 chemicals (lead, DEHP, formaldehyde, benzene, toluene, etc.). The new short-form warning label is mandatory for products sold in California after January 1, 2025. The new short-form is shorter than the previous long-form warning label, but the new short-form must include the specific chemical name (not just the general category). The importer should update the warning label design to the new short-form format and should verify that the new short-form is on the product packaging, the hangtag, and the e-commerce product page.
New chemicals added to the Prop 65 list in 2025
The OEHHA added new chemicals to the Prop 65 list in 2025, including additional PFAS compounds (PFNA, PFHxS, PFDA) and additional phthalates (DIBP, DCHP, DnPP). The new chemicals are added to the Prop 65 list with a 12-month safe harbor grace period, so importers have 12 months from the listing date to verify the new chemicals are not used in their fabric. The 12-month grace period is the OEHHA's standard practice, and the 12-month grace period is the timeline that the importer should plan for the new chemical verification.
The 2 changes together require the importer to: (1) update the warning label design to the new short-form format, (2) verify the new PFAS compounds are not present in the fabric, (3) verify the new phthalates are not present in the fabric, and (4) update the documentation package to reflect the 2 changes. The 4 actions are the operational compliance steps that the importer should complete by Q1 2026, and the 4 actions are the operational compliance steps that the importer's compliance team should be tracking in the compliance calendar.
PUL Waterproof Fabric and Prop 65 Compliance
PUL (Polyurethane Laminate) waterproof fabrics require special attention under Prop 65 because the PFAS restriction is the most significant compliance concern for PUL. PUL is a laminated fabric with a thin polyurethane film bonded to a polyester or cotton base, and PUL is used in baby diapers, incontinence products, and outdoor apparel. The traditional PUL manufacturing uses PFAS-based water-repellent finishes, but the PFAS restriction under Prop 65 makes the PFAS-based finishes a compliance risk.
The Prop 65-compliant PUL manufacturers have switched to PFAS-free water-repellent finishes (typically silicone-based or wax-based finishes), and the PFAS-free PUL is the Prop 65-compliant product for the California market. The fabric importer should verify with the mill that the PUL is PFAS-free, and the importer should request the third-party lab test report for PFAS (including PFOA, PFOS, and the newer 2025-added PFAS compounds) before importing the Pul Fabric into California. The PFAS-free PUL is slightly more expensive than the PFAS-based PUL (typically 5-10% premium), but the PFAS-free PUL is the only Prop 65-compliant option for the California market.
The PUL fabric is also subject to the other 5 Prop 65 restricted substance classes (formaldehyde, lead, phthalates, cadmium, azo dyes), and the PUL fabric importer should request the 6-class test report for every shipment. The 6-class test report is the operational baseline for the Prop 65 compliance, and the 6-class test report is the document that the importer's compliance team uses for the 4-step compliance path.
6-Question Supplier RFQ for Prop 65 Compliance
Prop 65 Fabric Supplier 6-Question RFQ Checklist
- Does the mill provide a Prop 65 substance declaration that identifies the 6 restricted substance classes (formaldehyde, lead, phthalates, cadmium, azo dyes, PFAS) and the concentration of each substance? The Prop 65 declaration is the first layer of verification and the document that the importer retains as part of the documentation package.
- Does the mill provide a third-party lab test report (NELAC or A2LA accredited) for the 6 restricted substance classes, dated within 12 months of the shipment? The third-party lab test report is the second layer of verification and the document that the importer uses to make the warning label decision.
- Is the mill's warning label design in the new OEHHA short-form format (mandatory after January 1, 2025), and does the warning label include the specific chemical name and the URL www.P65Warnings.ca.gov? The new short-form warning label is the 2025 mandatory requirement, and the importer should verify the warning label format before the first shipment.
- For PUL waterproof fabric specifically, is the mill's PUL PFAS-free (silicone-based or wax-based water-repellent finish), and does the mill provide the PFAS test report that includes the 2025-added PFAS compounds? The PFAS restriction is the most significant compliance concern for PUL, and the PFAS-free PUL is the only Prop 65-compliant option for the California market.
- Does the mill have a Prop 65 compliance documentation package that includes the substance declaration, the third-party lab test report, the warning label design, and the supply chain chain-of-custody document? The documentation package is the 3-year retention document that the importer's legal team uses to defend the Prop 65 enforcement action.
- Does the mill have a Prop 65 compliance certification (e.g., from the American Apparel and Footwear Association or similar industry association) that verifies the mill's Prop 65 compliance program? The Prop 65 compliance certification is the third-party verification that the mill's Prop 65 compliance program is operationally enforced.
The 6-question supplier RFQ is the document the importer should send to the mill before placing the first order. The 6 questions verify that the mill's Prop 65 compliance program is current, the lab test report is from an accredited third-party, the warning label is in the new short-form format, and the documentation package is complete. The 6 questions are the operational compliance baseline that the importer's compliance team uses to qualify the mill for the California market.
For a buyer who needs a 16-year sustainable fabric mill with verifiable Prop 65 compliance, the XNZTEX team is available at about us for the 6 restricted substance classes, the 4-step compliance path, the new short-form warning label, and the PFAS-free PUL capability. The factory can prepare a sample shipment with the 6-class test report within 7 days of the inquiry, and can prepare a production batch with the per-batch compliance documentation within 30-45 days of the PO confirmation.
Frequently Asked Questions
What is California Prop 65 and how does it apply to fabric importers?
California Proposition 65 (the Safe Drinking Water and Toxic Enforcement Act of 1986) is a California state law that requires businesses to provide warnings about significant exposures to chemicals that cause cancer, birth defects, or other reproductive harm. The list of regulated chemicals is maintained by the OEHHA (Office of Environmental Health Hazard Assessment) and currently contains over 900 chemicals. For fabric importers, Prop 65 applies to any fabric or finished textile product sold in California that contains a listed chemical at a concentration above the safe harbor level. The importer is responsible for verifying that the fabric meets the Prop 65 requirements before the product is sold in California, and the importer can be subject to enforcement action (including penalties of up to $2,500 per day per violation) if the product contains a listed chemical above the safe harbor level without the appropriate warning label.
What are the 6 restricted substance classes for fabric under California Prop 65?
The 6 restricted substance classes for fabric under California Prop 65 are: (1) Formaldehyde — used in fabric finishing for wrinkle resistance, with the safe harbor level at 75 micrograms per day (MADL); (2) Lead and lead compounds — used in some dyes and pigments, with the safe harbor level at 0.5 micrograms per day (MADL); (3) Phthalates — used in some plasticizers and print pastes, with the safe harbor level at 4.1 micrograms per day for DEHP (MADL); (4) Cadmium and cadmium compounds — used in some pigments and stabilizers, with the safe harbor level at 4.1 micrograms per day (MADL); (5) Azo dyes that release carcinogenic amines — restricted under California's textile regulations, with the safe harbor level at specific concentrations per amine; (6) PFAS (per- and polyfluoroalkyl substances) — used in water-repellent finishes, with the safe harbor level under development but typically referenced to 100 ppm for PFOA and PFOS. The 6 classes are the most common Prop 65 risk categories for fabric, and the 6 classes are the substance categories that the importer's third-party lab test must screen for.
What is the 4-step compliance path for fabric importers in 2026?
The 4-step compliance path for fabric importers in 2026 is the structured process that the importer follows to verify Prop 65 compliance for each fabric shipment. Step 1 is the substance screening — the importer requests the mill's Prop 65 substance declaration and the mill's test report for the 6 restricted substance classes. Step 2 is the third-party lab verification — the importer sends representative samples to a NELAC or A2LA accredited third-party lab (e.g., SGS, BV, TÜV, Intertek) for the 6 substance classes. Step 3 is the warning label decision — if any substance exceeds the safe harbor level, the importer must apply the Prop 65 warning label per the OEHHA requirements; if all substances are below the safe harbor level, no warning label is required. Step 4 is the documentation retention — the importer retains the test reports, the warning label design, and the supply chain declarations for at least 3 years (the Prop 65 statute of limitations). The 4-step path is the operational compliance workflow that the importer follows for every shipment.
When does a fabric importer need a Prop 65 warning label?
A fabric importer needs a Prop 65 warning label when the fabric contains a listed chemical at a concentration above the safe harbor level AND the exposure to the chemical from the intended use of the fabric exceeds the safe harbor level. The Prop 65 regulation provides two options for the warning label: the 'safe harbor' warning label language (a specific language that OEHHA has pre-approved) and a custom warning label that the importer develops with the OEHHA's review. The safe harbor warning label for textiles typically reads: 'WARNING: This product can expose you to chemicals including [chemical name], which is known to the State of California to cause [cancer/birth defects or other reproductive harm]. For more information go to www.P65Warnings.ca.gov'. The warning label must be on the product packaging, on the hangtag, and on the e-commerce product page if the product is sold online. The warning label is the importer's last line of legal defense, and the warning label is the most visible Prop 65 compliance requirement to the consumer.
What is the difference between Prop 65 and OEKO-TEX Standard 100?
The difference between Prop 65 and OEKO-TEX Standard 100 is the difference between a state law (Prop 65) and a voluntary industry certification (OEKO-TEX). Prop 65 is a California state law with mandatory requirements: the importer must verify compliance, apply the warning label if needed, and retain the documentation for 3 years. OEKO-TEX Standard 100 is a voluntary global certification that verifies the fabric is below the safe limits for 300+ harmful substances. Prop 65 has the listed chemical list (managed by OEHHA) and the safe harbor levels (which OEHHA updates periodically). OEKO-TEX has its own substance list (the OEKO-TEX Limit Values) that is updated annually. The Prop 65 list and the OEKO-TEX list overlap significantly for the most common restricted substances (formaldehyde, lead, phthalates, azo dyes), but the Prop 65 limits and the OEKO-TEX limits are not identical. A fabric that meets OEKO-TEX Standard 100 may still exceed the Prop 65 safe harbor level for a specific chemical, and the importer should verify both certifications independently.
What Prop 65 changes took effect in 2024 and 2025 that importers need to know?
Two significant Prop 65 changes took effect in 2024 and 2025 that fabric importers need to know. First, the OEHHA adopted new short-form warning label requirements in 2024 that mandate a specific format for the warning label, including the URL www.P65Warnings.ca.gov and the specific chemical name identification for the most common 12 chemicals. The new short-form warning label is mandatory for products sold in California after January 1, 2025. Second, the OEHHA added new chemicals to the Prop 65 list in 2025, including additional PFAS compounds and additional phthalates. The new chemicals are added to the Prop 65 list with a 12-month safe harbor grace period, so importers have 12 months to verify the new chemicals are not used in their fabric. The 2 changes together require the importer to update the warning label design and to verify the new chemicals are not present in the fabric.
How do PUL waterproof fabrics comply with Prop 65?
PUL (Polyurethane Laminate) waterproof fabrics comply with Prop 65 through the same compliance path as other fabrics, but the PFAS restriction is the most significant compliance concern for PUL. PUL is a laminated fabric with a thin polyurethane film bonded to a polyester or cotton base, and PUL is used in baby diapers, incontinence products, and outdoor apparel. The traditional PUL manufacturing uses PFAS-based water-repellent finishes, but the PFAS restriction under Prop 65 makes the PFAS-based finishes a compliance risk. The Prop 65-compliant PUL manufacturers have switched to PFAS-free water-repellent finishes (typically silicone-based or wax-based finishes), and the PFAS-free PUL is the Prop 65-compliant product for the California market. The fabric importer should verify with the mill that the PUL is PFAS-free, and the importer should request the third-party lab test report for PFAS (including PFOA, PFOS, and the newer 2025-added PFAS compounds) before importing the PUL fabric into California.