Title 21 › CHAPTER 9 — FEDERAL FOOD, DRUG, AND COSMETIC ACT › SUBCHAPTER V — DRUGS AND DEVICES › Part E — General Provisions Relating to Drugs and Devices › § 360bbb–4b
Lets a person send a "medical countermeasure master file" to the Secretary so others can use the data in it to support FDA submissions without forcing the master file holder to hand over the underlying data. The master file can be used to back up applications that seek approval, clearance, licensure, conditional approval, classification, or emergency authorization for drugs, biologics, devices, animal drugs, and related pandemic or security products. A master file can include material about product development and about how the product is made. The Secretary can ask the holder to keep the file up to date while others are relying on it. If a master file was used only for a conditional animal-drug approval, any later use for full approval must be backed by extra data so the product meets the normal standards for review. When a submission relies on a master file, the included material must be described so reviewers can find and read it in the master file without re-sending the data. Master files must be filed electronically in the required format. If the master file holder is also the sponsor, they must tell the Secretary they plan to reference the file. Other applicants may incorporate parts of a master file only if the holder gives written permission. If the Secretary uses material from a master file to support approval or authorization, the Secretary must send the holder a written notice saying which parts were relied on and for what purpose. For certain conditional-to-full approval cases, the Secretary must also give a short written explanation (without revealing trade secrets) about how the master file met the evidence standards. The law does not change the Secretary’s existing powers or the usual standards for approving, licensing, or clearing products. Definitions: "master file holder" = the person who sends the file; "medical countermeasure submission" = the kinds of drug, biologic, device, animal drug, or emergency-use applications listed above; other specialized terms refer to definitions in the Public Health Service Act.
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Food and Drugs, Source: USLM XML via OLRC
Legislative History
Reference
Citation
21 U.S.C. § 360bbb–4b
Title 21, Food and Drugs
Last Updated
Sep 22, 2026
Release point: 119-110