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# Guide on Biosimilar Supplement Classifications
- URL: https://www.fdaweb.com/guide-on-biosimilar-supplement-classifications/
- Published: 2023-08-11T12:00:00.000Z
- Updated: 2026-09-14T18:49:54.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5155086

*Federal Register* notice: FDA has made available a draft guidance entitled “Classification Categories for Certain Supplements Under BsUFA III.” The document provides recommendations for applicants and FDA review staff on classification categories A, B, C, D, E, and F for original and resubmitted prior approval supplements submitted to approved applications under the Public Health Service Act. To view the notice, click [here](https://www.govinfo.gov/content/pkg/FR-2023-08-11/pdf/2023-17262.pdf?ref=fdaweb.com).