The Traffic Signs (Amendment) Regulations (Northern Ireland) 1992
The Department of the Environment, in exercise of the powers conferred on it by Articles 2(2) and 27 of the Road Traffic (Northern Ireland) Order 1981(a) and of every other power enabling it in that behalf, makes the following regulations:

(a) S.I. 1981/154 (N.I. 1). Art. 2(2) is cited because it contains a definition of "Department".
(b) S.R. 1979 No. 386. Relevant amending rules are S.R. 1985 No. 24 and S.R. 1990 No. 122.
(c) S.R. 1992 No. 132