14.—(1) Subject to regulation 18, no person may market, other than in a properly sealed package or container—
(a)pre-basic seed potatoes;
(b)basic seed potatoes;
(c)certified seed potatoes; or
(d)test and trial seed potatoes.
(2) For the purposes of this regulation, a properly sealed package or container means—
(a)for seed potatoes produced in England, a closed package or container that has been sealed with an unbroken sealing device by or under the supervision of an authorised officer;
(b)for seed potatoes produced outside England, a closed package or container that has been sealed in accordance with Article 11(1) of the Directive.
(3) Where a sealing device on a package or container is broken, the package or container must not be re-sealed with a sealing device otherwise than by or under the supervision of an authorised officer.
(4) For the purposes of 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.