North America is not a single compliance regime. Federal rules under the Consumer Product Safety Commission sit alongside California Proposition 65, a growing set of state chemical bans, and labelling and customs obligations that apply to the finished garment. A zipper that passes a laboratory screen can still fail at the border or in a state attorney's letter if the documentation is incomplete.
This checklist covers what a zipper buyer should request and hold, and where the responsibilities actually sit.
1. CPSIA: the core limits
For children's products, lead content in accessible substrate must not exceed 100 ppm, and lead in surface coatings must not exceed 90 ppm. Certain phthalates are limited to 0.1% by weight in plasticised components, which matters for PVC tape, coated sliders and soft plastic pullers. Testing must be carried out at a CPSC-accepted third-party laboratory for a children's product, and the resulting Children's Product Certificate must accompany the shipment.
Zippers are components, but component-level test data is what allows the finished-goods brand to issue its certificate. Ask for results by component and by material, with the laboratory name and report number visible.
2. Tracking labels and small parts
Children's products require a permanent tracking label with the manufacturer or importer name, the production location and date, and a batch or run identifier. On a zipper this is usually carried by the garment, but the zipper lot code must be traceable to the garment batch. If your supplier cannot tie a carton to a production date, the tracking label is decorative.
Also screen for small parts and sharp points. A puller that detaches under a defined force is a hazard in childrenswear, so specify the retention force and test it rather than relying on a visual check.
3. Flammability of wearing apparel
General wearing apparel textiles fall under 16 CFR 1610 and must meet Class 1, the normal flammability rate. Zipper tape is a small proportion of the garment surface, but raised tape, coated tape and decorative pulls can affect the result. Confirm that the tape finish does not change the garment's tested performance, and keep the tape specification on file.
4. California Proposition 65
Proposition 65 requires a warning for exposure to listed chemicals above defined thresholds, or reformulation to avoid the exposure. For zippers the relevant exposures are lead in metal and brass components, and certain phthalates in plasticised parts. The practical choice is between testing to demonstrate that exposure is below the threshold, or applying a warning. Most brands prefer the first, because a warning label on a zipper is commercially unacceptable.
Ask for Proposition 65-specific test data rather than a general heavy-metal screen, because the calculation is exposure-based, not concentration-based.
5. State-level PFAS and chemical restrictions
Several states now restrict PFAS in textile articles and apparel, with effective dates that have been phasing in since the mid-2020s, and others restrict bisphenols or specific flame retardants. Water-repellent zipper tape is the component most likely to carry a fluorinated finish. Obtain a written PFAS declaration, and be specific about the test method used, because total fluorine screening and targeted PFAS analysis answer different questions.
6. Labelling and care
The Textile Fiber Products Identification Act requires fibre content, country of origin and the identity of the manufacturer or importer on textile products. Care labelling under 16 CFR 423 requires washing instructions where a care label is used. Where the zipper tape is visible and described in marketing, the fibre content must be accurate; a polyester coil tape described as nylon is a labelling violation, not a rounding error.
7. Customs and origin
Confirm the classification and the country of origin before the first shipment. Origin rules determine duty and whether a preferential agreement applies, and a zipper assembled in one country from tape made in another can have a different origin than the buyer assumes. Keep the bill of materials and the supplier declaration in the entry file, and check that the origin marked on the carton matches the declaration.
8. Build the document flow before the first order
Compliance fails at handovers, not at testing. Agree in advance which party holds which document and for how long: the zipper supplier holds component test reports and lot records, the garment factory holds purchase and inspection records, and the brand holds the certificate and the general certificate of conformity. Each should be able to retrieve a record within 24 hours of a request.
Name a single contact on each side. When a customs broker or a retailer's compliance team asks a question, a named owner answers it in a day; a shared inbox answers it in a week.
Retain records for at least three years for certificates and five years for test data, and keep the lot code that links the carton to the report. That one field is what converts a stack of certificates into traceability.
State-level rules to check before the shipment is booked:
- PFAS restrictions on textile articles and apparel.
- Bisphenol and flame retardant limits in specific states.
- Children's product registration and incident reporting duties.
- Packaging recycling and labelling requirements.
- State chemical reporting lists that apply to components.
Checklist: ten documents to hold before shipment
- Component-level lead test at or below 100 ppm substrate and 90 ppm coating.
- Phthalate results at or below 0.1% for plasticised parts.
- Children's Product Certificate from a CPSC-accepted laboratory where applicable.
- Tracking label content and lot traceability confirmation.
- Puller retention force test result against the specified value.
- 16 CFR 1610 Class 1 confirmation for the tape and finish.
- Proposition 65 exposure assessment or test data.
- Written PFAS declaration with the test method named.
- Fibre content and country of origin matching the commercial invoice.
- Origin declaration and bill of materials in the customs entry file.
The pattern is consistent: the zipper factory supplies evidence, and the brand assembles the certificate. Suppliers such as YCC and Donglong issue lot-referenced component reports for exactly this purpose, which removes most of the last-minute testing before a US shipment.