CFR > Title 21 - Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER L—REGULATIONS UNDER CERTAIN OTHER ACTS ADMINISTERED BY THE FOOD AND DRUG ADMINISTRATION (parts 1210 to 1272) > PART 1250—INTERSTATE CONVEYANCE SANITATION > SUBPART B—Food Service Sanitation on Land and Air Conveyances, and Vessels (§1250.20 to §1250.39) > 1250.34—Refrigeration equipment.

1250.34—Refrigeration equipment.

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.