The short answer
It depends on who the product is for and where it is sold. Children’s activewear for ages 12 and under needs testing at a CPSC-accepted laboratory, a certificate and permanent tracking marks. Clothing fabric must not fall into the federal flammability standard’s dangerously flammable class. California requires Prop 65 warnings for knowing exposures to listed chemicals unless an exemption applies, and California and Maine restrict PFAS in textile articles. Imports tied to Xinjiang face a forced-labor presumption. No single certificate covers all of these.
Children’s product rules turn on the intended user, not on the fabric.
A Prop 65 warning discloses an exposure; it is not a finding that a product is unsafe.
State PFAS laws differ in dates, thresholds and scope, so record which law and date you checked.
Which US rules can apply to one activewear style?
Map the rules before you brief a laboratory. One legging can fall under several regimes, each needing different evidence. This map reflects official texts reviewed on 27 September 2026; confirm current status before launch.
| Rule | When it matters | Evidence to plan |
|---|---|---|
| CPSIA children’s product rules | Products designed or intended primarily for children 12 or younger | Tests at a CPSC-accepted laboratory, a certificate and tracking marks |
| 16 CFR Part 1610 flammability | Fabric ready for use in wearing apparel | Test results or a documented testing exemption |
| California Proposition 65 | Knowing exposure of people in California to listed chemicals | List check, exposure assessment, reformulation or a clear and reasonable warning |
| California and Maine PFAS textile laws | Apparel and other textile articles sold in those states | Supplier declaration, component list, test data and, for California, a certificate of compliance |
| UFLPA | Goods made wholly or partly in Xinjiang or by listed entities | Supply-chain tracing and records that answer customs inquiries |
What is CPSIA, and when does it apply to activewear?
The Consumer Product Safety Improvement Act of 2008 (CPSIA) amended the Consumer Product Safety Act, which the Consumer Product Safety Commission (CPSC) administers. Its children’s rules cover products designed or intended primarily for children 12 or younger, judged by stated intended use, packaging and advertising, and how consumers recognize the product. Matching mini sizes can bring a program into scope even when the adult style is not.
For a children’s product subject to a children’s product safety rule, the manufacturer, and the private labeler of a private-label product, must have samples tested by a laboratory whose accreditation the CPSC has accepted, then issue a certificate based on the results; CPSC rules call it the Children’s Product Certificate. It names the issuer and laboratory, the dates and places of manufacture and testing, and a records contact. The CPSC does not issue it.
Lead in any part of a children’s product is limited to 100 parts per million unless the Commission sets another level for a category, so test prints, snaps and zipper pulls as separate components. Permanent tracking marks on the product and, where practicable, its packaging must let the maker trace place, date and batch, and let the purchaser identify the manufacturer or private labeler, place, date and batch; fix those fields in the US label checklist. Periodic testing runs at least yearly unless a rule provides otherwise, and a material change such as a new component supplier needs new tests and a new certificate; manage both through reorder change control.
Do adult activewear fabrics need flammability testing?
Adult activewear is outside CPSIA’s children’s rules but not outside federal flammability law. 16 CFR Part 1610 applies to fabric ready for use in wearing apparel, sorts textiles into three classes and bars Class 3, “rapid and intense burning”, from clothing. Class 2 exists only for raised-fiber surface textiles, so ask the laboratory how it treats a brushed face.
Two groups are exempt from testing to support a guaranty: plain-surface fabrics of any fiber at 2.6 ounces per square yard or more, and fabrics made entirely of acrylic, modacrylic, nylon, olefin, polyester or wool. Spandex is not on that list, so a lightweight nylon-spandex jersey, a raised-face spandex blend or a lightweight cotton knit needs flammability evidence. “How flammable is cotton?” has no fiber-only answer; the class comes from testing the actual fabric.
“Non-flammable” is not a class in the regulation, and a Part 1610 result does not make a garment flame resistant. Record the fabric, weight, surface and test report or exemption basis in the bill of materials so a substitution triggers a fresh check.
What does a Prop 65 warning mean for activewear?
Proposition 65, California’s Safe Drinking Water and Toxic Enforcement Act of 1986, requires a clear and reasonable warning before a business knowingly and intentionally exposes someone to a chemical on the state’s list of chemicals known to cause cancer or reproductive toxicity. The Office of Environmental Health Hazard Assessment (OEHHA) maintains the list and updates it at least yearly, and warning duties start 12 months after a listing. Businesses with nine or fewer employees are exempt, out-of-state manufacturers are not, and exposures shown to fall below the no-significant-risk or maximum-allowable-dose level need no warning.
The California Attorney General notes that a warning is not a regulatory decision that a product is safe or unsafe, and that Prop 65 prescribes no test method. “Prop 65 compliant” is therefore not an official status; it should mean you checked the current list, assessed exposure from the product in use, and then reformulated, documented a below-threshold exposure or warned properly.
The list reviewed, dated 31 July 2026, includes bisphenol A (BPA) and bisphenol S (BPS) for reproductive endpoints and three individual PFAS, namely PFOA, PFOS and PFNA, but not PFAS as a class. If a supplier’s chemical inventory or test report shows bisphenols or fluorinated chemistry in a print, coating or finish, compare it with the list in force before approval.
Which PFAS laws affect activewear sold in California or Maine?
California Health and Safety Code sections 108970 and 108971 name leggings, athletic wear, dancewear and everyday swimwear as apparel. Since 1 January 2025 they bar making, distributing or selling new textile articles containing regulated PFAS: PFAS intentionally added for a functional or technical effect, or total organic fluorine of 100 parts per million or more, falling to 50 on 1 January 2027. Manufacturers must give sellers a signed certificate of compliance and use the least toxic alternative. Outdoor apparel for severe wet conditions has until 1 January 2028, with a “Made with PFAS chemicals” disclosure meanwhile.
Maine’s 38 M.R.S. section 1614 has prohibited selling textile articles containing intentionally added PFAS since 1 January 2026, excluding outdoor apparel for severe wet conditions, which faces a disclosure rule from 2029. Maine already bans PFAS in fabric treatments, defined as substances giving fabric stain or water resistance, and a general ban starts in 2032 unless a use is found currently unavoidable. This guide reviewed only these two states.
“PFAS compliant” means little until you name the law and the date. Specify no intentionally added PFAS for every fabric, finish, print, trim and label in the BOM, require notice before finish changes, and ask which components carry repellent treatments. The testing resources ranking shows what a declaration, test report and certificate can each prove.
What does UFLPA mean for activewear importers?
The Uyghur Forced Labor Prevention Act, Public Law 117-78, approved on 23 December 2021, directs U.S. Customs and Border Protection (CBP) to presume that goods mined, produced or manufactured wholly or in part in the Xinjiang Uyghur Autonomous Region, or by entities on the lists the Act requires, are made with forced labor and barred from entry. The presumption stands unless the importer of record followed the official guidance, fully answered CBP’s inquiries and showed by clear and convincing evidence that no forced labor was involved.
“Wholly or in part” reaches fiber, yarn, fabric and trims as well as the garment. The Act names cotton as a high-priority enforcement sector and requires guidance to importers on due diligence and supply-chain tracing. Screen suppliers against the current official entity lists, not a saved copy, and build tracing for cotton and cotton-blend components before shipment alongside your production release records.
Where do REACH requests and “non-toxic” claims fit?
Prop 65 is a California warning law built on a published list; REACH is the European Union’s chemicals regulation, with its own restrictions and supply-chain duties. If a customer asks for a “REACH compliance certificate”, ask which restrictions and substance lists it must address, which test reports support it and who signs it, and have an EU compliance specialist confirm your obligations; this guide does not set them out.
“Non-toxic activewear” is not a category in any US rule above, and fiber names such as nylon, polyester or spandex do not settle chemical questions; evidence has to follow the dyes, finishes, prints and trims on the actual article. Ask for a restricted substance list in the supply agreement, test reports tied to the identified article and certificates whose scope covers it, as compared in the OEKO-TEX, GRS and GOTS guide. Health claims need their own substantiation.
Decision map from this guide
| Decision area | What this guide establishes |
|---|---|
| Style is sized or marketed for children 12 and under | Plan tests at a CPSC-accepted laboratory, a Children’s Product Certificate and permanent tracking marks before bulk. |
| Lightweight or raised-surface fabric containing spandex | Neither Part 1610 testing exemption fits; get flammability results before accepting a guaranty. |
| Goods will be sold in California | Check the chemistry against the current Prop 65 list, then decide on assessment, reformulation or a warning. |
| A water- or stain-repellent finish is proposed | Check it against California and Maine PFAS rules before approving the sample. |
| Cotton or cotton-blend components are involved | Map fiber, yarn and fabric origin before shipment; UFLPA evidence has to reach upstream. |
| A supplier offers a “non-toxic” or “PFAS-free” statement | Ask what was tested, by whom, on which article and against which law. |
Sources and scope
US statutes and regulations published on govinfo, California Attorney General and OEHHA pages, and the California and Maine statute texts support the legal statements, each as reviewed on 27 September 2026; state PFAS rules change, so confirm current status before relying on a date. The rule map, decision rows and evidence advice are MOTIONFORM editorial guidance, not legal advice, and MOTIONFORM does not certify products or guarantee compliance.
- Consumer Product Safety Improvement Act of 2008, Public Law 110-314, via govinfo (reviewed 27 September 2026)
- CPSC: 16 CFR Part 1107, testing and labeling for product certification, 2025 edition via govinfo (reviewed 27 September 2026)
- CPSC: 16 CFR Part 1610, Standard for the Flammability of Clothing Textiles, 2025 edition via govinfo (reviewed 27 September 2026)
- California Attorney General: Proposition 65 frequently asked questions (reviewed 27 September 2026)
- OEHHA: Proposition 65 list dated 31 July 2026 (reviewed 27 September 2026)
- California Health and Safety Code sections 108970–108971, textile articles and PFAS (reviewed 27 September 2026)
- Maine Revised Statutes Title 38, section 1614, products containing PFAS (reviewed 27 September 2026)
- Uyghur Forced Labor Prevention Act, Public Law 117-78, via govinfo (reviewed 27 September 2026)
Buyer questions
What is the difference between CPSIA, CPSA and CPSC?
The CPSC is the Consumer Product Safety Commission, the federal agency. The CPSA is the Consumer Product Safety Act it administers. The CPSIA, the Consumer Product Safety Improvement Act of 2008, amended that Act and added children’s product requirements such as third-party testing, certificates and tracking marks. A certificate described as CPSIA compliance is issued under the amended Act.
What is a CPSIA tracking label?
It is a permanent mark on a children’s product and, where practicable, its packaging. It must let the manufacturer trace production place, date and batch or run, and let the purchaser identify the manufacturer or private labeler, the place and date of production and the batch. Write its fields and position into the label artwork so every factory prints the same information.
Does an ASTM method or an OEKO-TEX certificate replace CPSIA testing?
No. ASTM International publishes voluntary standards and OEKO-TEX runs a voluntary label; the children’s product certificate is a legal document based on tests at a CPSC-accepted laboratory against the applicable rules. A regulation can adopt a private method by reference, as 16 CFR Part 1610 does with an AATCC laundering procedure, but the regulation decides which method counts.
Does 100% polyester activewear need flammability testing?
Fabrics made entirely of polyester, nylon, acrylic, modacrylic, olefin or wool are exempt from testing to support a Part 1610 guaranty, as are plain-surface fabrics weighing 2.6 ounces per square yard or more. Spandex is not on that fiber list, so a lightweight or raised-surface blend may need testing. The fabric still must not be dangerously flammable.
Does Prop 65 include PFAS?
Some PFAS, not the whole class. The OEHHA list dated 31 July 2026 includes PFOA, PFOS and PFNA with specified endpoints, and Prop 65 requires a clear and reasonable warning for knowing exposures unless an exemption applies. California’s separate textile law bars regulated PFAS in apparel outright, so a warning cannot substitute for meeting it.
Is a product with a Prop 65 warning unsafe?
Not by itself. The California Attorney General explains that a warning signals exposure to listed chemicals above threshold levels, which is not the same as a regulatory decision that a product is safe or unsafe. For your own line, record why a warning is or is not used: an exposure assessment, a reformulation or a supplier change.
Is PFAS in clothing dangerous?
This guide does not make health claims. What can be stated is the legal position: California and Maine restrict PFAS in apparel and other textile articles, and the Prop 65 list includes PFOA, PFOS and PFNA. Take health questions to public health authorities; for your own product, specify no intentionally added PFAS and collect evidence that fits each law.
What is UFLPA compliance for an apparel importer?
It means being able to rebut the presumption with evidence. Goods made wholly or partly in Xinjiang or by listed entities are presumed barred unless the importer of record followed the official guidance, fully answered CBP’s inquiries and showed by clear and convincing evidence that no forced labor was involved. Build fiber-to-garment tracing before shipment, not after goods are held.
