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Last reviewed: September 2026 · Copy link
CPC for science and STEM kits
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The rules a science kit stacks
- Toy standard provisions for physical hazards (sharp tools, heating elements, projectiles in physics kits).
- CPSIA lead limits on every accessible component: boards, wires, paints, glazes.
- LHAMA / ASTM D-4236 labeling for any art-material components like pigments and glues.
- Chemistry sets carry additional federal labeling requirements for hazardous substances under the FHSA framework.
Kit composition strategy
A kit is tested as sold: every component in the box is in scope. The cost-control move is a stable bill of materials: once a component set is tested and documented, subsequent kits reusing the same components certify faster and cheaper. Keep each component’s declaration in the same vault file as the kit certificate.
Questions people ask
Do educational STEM kits need third-party testing?
If the kit is a children’s product subject to CPSC rules, yes: third-party testing at a CPSC-accepted lab for the applicable rules, like any toy.
The kit contains real chemicals. Extra rules?
Chemistry-set chemicals have their own federal labeling requirements under the hazardous substances framework, and some substances are restricted. Review each chemical with your lab and compliance advisor before selling.
Does the adult-supervision age grade (12+) remove obligations?
No: age grading adjusts warnings, not the testing and certification duties for the rules that apply to the kit as a children’s product.
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