21 C.F.R. § 1250.27 Storage of perishables.
Title 21 - Food and Drugs
All perishable food or drink shall be kept at or below 50 °F, except when being prepared or kept hot for serving.
Title 21: Food and Drugs
PART 1250—INTERSTATE CONVEYANCE SANITATION
Subpart B—Food Service Sanitation on Land and Air Conveyances, and Vessels
§ 1250.27 Storage of perishables.