# Federal Register 2026-20725 — effective 2026-10-09 — Medical Devices; Immunology and Microbiology Devices; Classification of the Hematopoietic Cell Enrichment Kit — Food and Drug Administration

For Federal Register 2026-20725, effective date is 2026-10-09; agency is Food and Drug Administration; published is 2026-10-09; cfr parts amended is 21 CFR 866, recorded from its source on 2026-10-12; source re-checked 2026-11-03.

- **FR document number:** 2026-20725 _(verified: appears in the quote below)_
- **Rule:** Medical Devices; Immunology and Microbiology Devices; Classification of the Hematopoietic Cell Enrichment Kit _(verified: appears in the quote below)_
- **Agency:** Food and Drug Administration _(verified: appears in the quote below)_
- **Effective date:** 2026-10-09 _(verified: appears in the quote below)_
- **DATES, as printed:** This order is effective October 9, 2026. The classification was applicable on November 6, 2023. _(verified: appears in the quote below)_
- **CFR parts amended:** 21 CFR 866 _(our reading, not quoted from the source)_
- **Published:** 2026-10-09 _(verified: appears in the quote below)_

## What the source says

> {"document_number":"2026-20725","title":"Medical Devices; Immunology and Microbiology Devices; Classification of the Hematopoietic Cell Enrichment Kit","agency_names":["Health and Human Services Department","Food and Drug Administration"],"effective_on":"2026-10-09","dates":"This order is effective October 9, 2026. The classification was applicable on November 6, 2023.","cfr_references":[{"chapter":null,"citation_url":null,"part":"866","title":21}],"publication_date":"2026-10-09","html_url":"https://www.federalregister.gov/documents/2026/10/09/2026-20725/medical-devices-immunology-and-microbiology-devices-classification-of-the-hematopoietic-cell"}

## 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: 2026-11-03. Review by: 2026-11-16.
Part of [Federal rules taking effect: every US final rule in the Federal Register, by effective date](https://referencesource.org/federal-rules-taking-effect/).