12.—(1) Subject to regulation 16, a person shall not market a package or container of pre-basic seed potatoes, basic seed potatoes or test and trial seed potatoes unless the package or container is closed and—
(a)in relation to seed potatoes produced in Northern Ireland, the package or container has been sealed with an unbroken sealing device by, or under the supervision of, an authorised officer;
(b)in relation to seed potatoes produced outside Northern Ireland, the package or container has been sealed in accordance with Article 12(1) of Council Directive 2002/56/EC.
(2) Where a sealing device on a package or container is broken, the package or container shall not be re-sealed with a sealing device except by, or under the supervision of, an authorised officer.
(3) In this regulation a “sealing device” means a device applied in such a manner to a package or container that when the package or container is opened the device will be broken.