# Federal Register 2026-18380 — effective 2026-10-09 — Federal Motor Vehicle Safety Standard No. 213a; Child Restraint Systems-Side Impact Protection; Federal Motor Vehicle Safety Standard No. 213; Child Restraint Systems, Federal Motor Vehicle Safety Standard No. 213b; Child Restraint Systems; Incorporation by Reference — National Highway Traffic Safety Administration

For Federal Register 2026-18380, effective date is 2026-10-09; agency is National Highway Traffic Safety Administration; published is 2026-09-09; cfr parts amended is 49 CFR 571; dates, as printed is Effective date: The effective date of this final rule is October 9, 2026, recorded from its source on 2026-09-14; source re-checked 2026-09-16.

- **FR document number:** 2026-18380 _(verified: appears in the quote below)_
- **Rule:** Federal Motor Vehicle Safety Standard No. 213a; Child Restraint Systems-Side Impact Protection; Federal Motor Vehicle Safety Standard No. 213; Child Restraint Systems, Federal Motor Vehicle Safety Standard No. 213b; Child Restraint Systems; Incorporation by Reference _(verified: appears in the quote below)_
- **Agency:** National Highway Traffic Safety Administration _(verified: appears in the quote below)_
- **Effective date:** 2026-10-09 _(verified: appears in the quote below)_
- **DATES, as printed:** Effective date: The effective date of this final rule is October 9, 2026. _(verified: appears in the quote below)_
- **CFR parts amended:** 49 CFR 571 _(our reading, not quoted from the source)_
- **Published:** 2026-09-09 _(verified: appears in the quote below)_

## What the source says

> {"document_number":"2026-18380","title":"Federal Motor Vehicle Safety Standard No. 213a; Child Restraint Systems-Side Impact Protection; Federal Motor Vehicle Safety Standard No. 213; Child Restraint Systems, Federal Motor Vehicle Safety Standard No. 213b; Child Restraint Systems; Incorporation by Reference","agency_names":["Transportation Department","National Highway Traffic Safety Administration"],"effective_on":"2026-10-09","dates":"Effective date: The effective date of this final rule is October 9, 2026.","cfr_references":[{"chapter":null,"citation_url":null,"part":"571","title":49}],"publication_date":"2026-09-09","html_url":"https://www.federalregister.gov/documents/2026/09/09/2026-18380/federal-motor-vehicle-safety-standard-no-213a-child-restraint-systems-side-impact-protection-federal"}

## Source

- https://www.federalregister.gov/api/v1/documents.json?per_page=1000&order=oldest&conditions%5Btype%5D%5B%5D=RULE&conditions%5Beffective_date%5D%5Bgte%5D=2026-08-31&conditions%5Beffective_date%5D%5Blte%5D=2026-12-31&fields%5B%5D=document_number&fields%5B%5D=title&fields%5B%5D=agency_names&fields%5B%5D=effective_on&fields%5B%5D=dates&fields%5B%5D=cfr_references&fields%5B%5D=publication_date&fields%5B%5D=html_url

Last verified: 2026-09-16. Review by: 2026-09-29.
Part of [Federal rules taking effect: every US final rule in the Federal Register, by effective date](https://referencesource.org/federal-rules-taking-effect/).