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 C—Equipment and Operation of Land and Air Conveyances (§1250.40 to §1250.53) > 1250.53—Discharge of wastes on air conveyances.