21 CFR 211.173 - Laboratory animals.

Regulations last checked for updates: Feb 12, 2026

Title 21 - Food and Drugs last revised: Dec 18, 2026

View all text of Subpart I [§ 211.160 - § 211.176]

§ 211.173 - Laboratory animals.

Animals used in testing components, in-process materials, or drug products for compliance with established specifications shall be maintained and controlled in a manner that assures their suitability for their intended use. They shall be identified, and adequate records shall be maintained showing the history of their use.

authority: 21 U.S.C. 321,351,352,355,360b,360ddd,360ddd-1,371,374; 42 U.S.C. 216,262,263a,264

source: 43 FR 45077, Sept. 29, 1978, unless otherwise noted.

cite as: 21 CFR 211.173