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| Decision field | Open accessCPSC Certificate eFilingUnited States · North AmericaRemove | Open accessKnitting Stitch LibraryGlobalRemove | Open accessKnitting Needle to Crochet Hook Size ChartGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Check standards | Learn techniques | Learn techniques |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Standards | Techniques & repair | Yarn |
| Best for | Planning the current CPSC certificate-data handoff for regulated imports with the importer, finished-product certifier, customs broker, and entry records | Learning or comparing knit structures | Finding the current CYC hook and needle aliases that share one known nominal metric diameter before confirming project gauge |
| Know before using | The portal does not decide whether a product requires certification, identify the correct rules or certificate data, classify an entry, replace the current 16 CFR part 1110 text, or reconcile a filing to an actual shipment. Effective dates and workflows differ by entry route; use current CPSC, CBP, customs, product-safety, and legal review. | A foundational library, not yet an exhaustive stitch encyclopedia. | A shared nominal diameter does not make a knitting needle and crochet hook interchangeable or predict equal gauge or fabric. The reference is not a physical measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, or project approval. |
| Practical access | |||
| For | Apparel brands | Makers | Makers |
| Location or jurisdiction | United States · North America | Global | Global |
| Access | Open access | Open access | Open access |
| Format | Reference | Stitch Authority | Stitch Authority |
| Source type | Government guidance | Stitch Authority | Stitch Authority |
| Source and review | |||
| What the source establishes | CPSC operates the eFiling portal with role-specific importer, broker, applicability, Product Registry, regulated-product, laboratory, ACE, FAQ, video, and document-library routes. The certificate final rule took effect July 8, 2026 for covered non-FTZ products, with separate timing for covered FTZ entries. | The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface. | Rechecked July 28, 2026. The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows, aligns hooks and needles only when their nominal millimetre value matches, and leaves missing rows or aliases unfilled. |
| Linked page reviewed | Jul 16, 2026 | Jul 15, 2026 | Jul 28, 2026 |
| Next review due | Oct 14, 2026 | Jul 15, 2027 | Jul 28, 2027 |
| Inspect | |||
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