The Traffic (Weight Restriction) (No. 4) Order (Northern Ireland) 1980
The Department of the Environment in exercise of the powers conferred by section 20 of the Road Traffic Act (Northern Ireland) 1970(a) and now vested in it(b) and of every other power enabling it in that behalf, and being satisfied that the road described in article 2 is unsuitable for use by certain classes of vehicles, hereby makes the following order:-

(a) 1970 c. 2 (N.I.)
(b) S.R. & O. (N.I.) 1973 No. 504 art. 4 (II, p. 2992)