21 CFR Part 1271 · Human Cells, Tissues, and Cellular and Tissue-Based Products

21 CFR 1271.47

What procedures must I establish and maintain?

21 CFR 1271.47 is the regulation titled “What procedures must I establish and maintain?” in 21 CFR Part 1271, Human Cells, Tissues, and Cellular and Tissue-Based Products. Since 2021, 11 FDA warning letters have cited it.

Letters citing it
11 since 2021
Jan 1 to Oct 30, 2026
2 against 2 on the same dates in 2025
Most often cited with
21 CFR 1271.75, in 11 letters
Closed out
18% of these letters have a published close-out
See the 11 letters citing 21 CFR 1271.47 →

Letters citing it, by year issued

All are biologics letters. 2026 runs to Oct 30, 2026. Pick a year to see its letters.

  1. 12021
  2. 22022
  3. 12023
  4. 32024
  5. 22025
  6. 22026

What FDA writes when it cites it

The finding headings that cite 21 CFR 1271.47 most often, as written in the letters.

  • 1 letterFailure of the summary of records, required under 1271.55(a)(3), to contain a listing and interpretation of the results of all communicable disease tests performed [21 CFR 1271.55(b)(2)]. For example, your *SUMMARY…
  • 1 letterFailure to collect a donor specimen for testing for relevant communicable diseases at the time of recovery of cells or tissue from the donor; or for oocyte donors, up to 30 days before recovery or up to seven days after…
  • 1 letterFailure to establish and maintain procedures for all steps performed in testing, screening, determining donor eligibility, and complying with all other requirements of Subpart C “Donor Eligibility” in 21 CFR Part…

The regulation

Read the text of 21 CFR 1271.47 (eCFR, as of Sep 1, 2026)

(a) General. You must establish and maintain procedures for all steps that you perform in testing, screening, determining donor eligibility, and complying with all other requirements of this subpart. Establish and maintain means define, document (in writing or electronically), and implement; then follow, review, and as needed, revise on an ongoing basis. You must design these procedures to ensure compliance with the requirements of this subpart.

(b) Review and approval. Before implementation, a responsible person must review and approve all procedures.

(c) Availability. Procedures must be readily available to the personnel in the area where the operations to which they relate are performed, or in a nearby area if such availability is impractical.

(d) Departures from procedures. You must record and justify any departure from a procedure relevant to preventing risks of communicable disease transmission at the time of its occurrence. You must not make available for distribution any HCT/P from a donor whose eligibility is determined under such a departure unless a responsible person has determined that the departure does not increase the risks of communicable disease transmission through the use of the HCT/P.

(e) Standard procedures. You may adopt current standard procedures, such as those in a technical manual prepared by another organization, provided that you have verified that the procedures are consistent with and at least as stringent as the requirements of this part and appropriate for your operations.

Text from eCFR as of Sep 1, 2026.

Cited alongside it

Regulations that appear in the same letters as 21 CFR 1271.47.

Latest letters citing it

The 3 letters citing 21 CFR 1271.47 that FDA posted most recently.

See the 11 letters citing 21 CFR 1271.47 →
For regulated teams

Put this kind of reading to
work on your own records.

Botable builds and runs a custom AI layer around the software you already use, so your team can do the job you hired them for.

Counts include every citation in a letter, as the Letters filter does. How this database is built.

Every letter by dateHow this database is built

FDA Warning Letter Alerts

Share this view

Send the same filters, search and view to a colleague.

You choose what to post or send. Sharing a link does not change access to this site.