StacksVerified U.S. regulatory reference

21 CFR §111.25

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
You must establish and follow written procedures for fulfilling the requirements of this subpart D, including written procedures for:
  1. (a)Calibrating instruments and controls that you use in manufacturing or testing a component or dietary supplement;
  2. (b)Calibrating, inspecting, and checking automated, mechanical, and electronic equipment; and
  3. (c)Maintaining, cleaning, and sanitizing, as necessary, all equipment, utensils, and any other contact surfaces that are used to manufacture, package, label, or hold components or dietary supplements.