N.Y. Comp. Codes R. & Regs. tit. 1, § 2.27
(e) All openings on milk transport tanks shall be sealed after washing and sanitizing and shall be so maintained. Sealed manholes, which are opened for observation of milk level, shall be immediately resealed. Rear doors on farm tank pick-up vehicles need not be sealed between farms or from farms to receiving station if under the immediate supervision of a person licensed pursuant to section 57 of the Agriculture and Markets Law.
Note:
See sections 2.16 and 2.17 of this Part (Items 9r and 10r) for information on the construction of bulk milk pickup tankers.
Vehicles used to transport milk must meet the following requirements: