2 Weighing or measuring equipment of any class prescribed under section 11 of the Act shall be treated for the purposes of the Act as duly stamped in Great Britain under that section if—
(a) it has been duly stamped under the Weights and Measures (Northern Ireland) Order 1981; or
S.I.1981/231 (N.I.10).
(b) falls to be treated for the purposes of that Order as if so stamped:
Provided that this article shall not apply in the case of a non-automatic weighing instrument to which the Non-automatic Weighing Instruments (EEC Requirements) Regulations 1992 apply and which is first stamped on or after 1st January 2003.
S.I.1992/1579.