{"data":{"id":"us/21-cfr-211.173","jurisdiction":"us","citation":"21 CFR 211.173","heading":"Laboratory animals.","body":"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.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER C—DRUGS: GENERAL","PART 211—CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS","Subpart I—Laboratory Controls"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"ea7302c28cd515683829234e548c9dc7ec3a8fa0de6fac519f387d01db801140","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-211.170","next":"us/21-cfr-211.176"},"notice":"GroundRules: Original legal text. Not legal advice."}