The Motor Vehicle Testing (Extension) Order (Northern Ireland) 1977
The Department of the Environment for Northern Ireland in exercise of the powers conferred by section 29B(4) of the Road Traffic Act (Northern Ireland) 1970(a) (in this Order referred to as "the Act") and now vested in it(b) and of every other power enabling it in that behalf hereby orders and directs as follows:

(a) 1970 c. 2 (N.I.) as amended by S.I. 1973/1229 (N.I. 17) article 4
(b) S.R. & O. (N.I.) 1973 No. 504 article 5(b) (II, p. 2992)
(c) See S.R. 1976 No. 154 article 2.