Regulations last checked for updates: Feb 10, 2026

Title 21 - Food and Drugs last revised: Dec 18, 2026
§ 58.83 - Reagents and solutions.

All reagents and solutions in the laboratory areas shall be labeled to indicate identity, titer or concentration, storage requirements, and expiration date. Deteriorated or outdated reagents and solutions shall not be used.

source: 43 FR 60013, Dec. 22, 1978, unless otherwise noted.
cite as: 21 CFR 58.83