21 C.F.R. § 1250.50 Toilet and lavatory facilities.
Title 21 - Food and Drugs
Where toilet and lavatory facilities are provided on conveyances they shall be so designed as to permit ready cleaning. On conveyances not equipped with retention facilities, toilet hoppers shall be of such design and so located as to prevent spattering of water filling pipes or hydrants.
Title 21: Food and Drugs
PART 1250—INTERSTATE CONVEYANCE SANITATION
Subpart C—Equipment and Operation of Land and Air Conveyances
§ 1250.50 Toilet and lavatory facilities.

