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| Decision field | Open accessKnittyGlobalRemove | Open accessCrochet Stitch LibraryGlobalRemove | Open accessCPSC Certificate eFilingUnited States · North AmericaRemove | Open accessPattern Grading & Size-Run Validation RecordGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Find patterns & fit | Learn techniques | Check standards | Find patterns & fit |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Yarn | Techniques & repair | Standards | Patterns & fit |
| Best for | Free editorial knitting patterns and techniques | Learning or identifying crochet stitches | Planning the current CPSC certificate-data handoff for regulated imports with the importer, finished-product certifier, customs broker, and entry records | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence |
| Know before using | Free access does not grant commercial reproduction or sale rights; uses beyond one personal copy must be resolved with the designer or author. Knitty says it tries to avoid errors but disclaims responsibility for pattern and technique inaccuracies. Check the live page for corrections, verify gauge and measurements, and confirm permission before any commercial use. | A foundational library, not yet an exhaustive stitch encyclopedia. | 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. | The record does not create a production grade, supply universal increments or breakpoints, validate a CAD file or fit population, reproduce licensed standards, or replace qualified anthropometric, pattern, technical-design, fit, quality, accessibility, safety, statistical, and user-research review. |
| Practical access | ||||
| For | Makers | Makers | Apparel brands | Apparel brands |
| Location or jurisdiction | Global | Global | United States · North America | Global |
| Access | Open access | Open access | Open access | Open access |
| Format | Reference | Stitch Authority | Reference | Stitch Authority |
| Source type | First-party platform | Stitch Authority | Government guidance | Stitch Authority |
| Source and review | ||||
| What the source establishes | Knitty currently publishes web-only editorial issues containing original knitting and crochet patterns and articles. Its legal page states that patterns are free for one person's personal use, identifies each designer or author as the copyright holder, and explains that verified pattern corrections are posted in bright pink on the pattern page. | The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface. | 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 guide cites current ISO body-table, size-designation, and garment-measurement boundaries plus two peer-reviewed studies that tested the relationship between conventional grade rules, anthropometric evidence, and garment fit; it requires product-specific target deltas and validation instead of publishing universal increments. |
| Linked page reviewed | Jul 21, 2026 | Jul 15, 2026 | Jul 16, 2026 | Jul 27, 2026 |
| Next review due | Jan 17, 2027 | Jul 15, 2027 | Oct 14, 2026 | Jul 27, 2027 |
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