# Federal Register 2026-17437 — effective 2027-01-01 — International Trademark Classification Changes — Patent and Trademark Office

For Federal Register 2026-17437, effective date is 2027-01-01; agency is Patent and Trademark Office; published is 2026-08-26; cfr parts amended is 37 CFR 6; dates, as printed is This rule is effective on January 1, 2027, recorded from its source on 2026-08-31; source re-checked 2026-09-18.

- **FR document number:** 2026-17437 _(verified: appears in the quote below)_
- **Rule:** International Trademark Classification Changes _(verified: appears in the quote below)_
- **Agency:** Patent and Trademark Office _(verified: appears in the quote below)_
- **Effective date:** 2027-01-01 _(verified: appears in the quote below)_
- **DATES, as printed:** This rule is effective on January 1, 2027. _(verified: appears in the quote below)_
- **CFR parts amended:** 37 CFR 6 _(our reading, not quoted from the source)_
- **Published:** 2026-08-26 _(verified: appears in the quote below)_

## What the source says

> {"document_number":"2026-17437","title":"International Trademark Classification Changes","agency_names":["Commerce Department","Patent and Trademark Office"],"effective_on":"2027-01-01","dates":"This rule is effective on January 1, 2027.","cfr_references":[{"chapter":null,"citation_url":null,"part":"6","title":37}],"publication_date":"2026-08-26","html_url":"https://www.federalregister.gov/documents/2026/08/26/2026-17437/international-trademark-classification-changes"}

## 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=2027-01-01&conditions%5Beffective_date%5D%5Blte%5D=2027-12-31&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: 2026-09-18. 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/).