StacksVerified U.S. regulatory reference

21 CFR §1250.34

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Each refrigerator shall be equipped with a thermometer located in the warmest portion thereof. Waste water drains from ice boxes, refrigerating equipment, and refrigerated spaces shall be so installed as to prevent backflow of contaminating liquids.