1 Citation and commencement
This Order may be cited as the Alkali, and c. Works Order (Northern Ireland) 1991 and shall come into operation on 1st April 1991.

2 Interpretation
In this Order, “the Alkali Act”means the Alkali, and c. Works Regulation Act 1906 as amended by the Alkali, and c. Works Order (Northern Ireland) 1987 .
1906 c. 14
S.R. 1987 No. 123

3 Noxious and offensive gases
For the list of noxious or offensive gases mentioned in section 27 of the Alkali Act there shall be substituted the list set out in Schedule 1.

4 Works
For the list of works mentioned in the First Schedule to the Alkali Act there shall be substituted the list of works set out in Schedule 2.

5 Revocation
The Alkali, and c. Works Order (Northern Ireland) 1987 is hereby revoked.
Sealed with the Official Seal of the Department of the Environment on
R. W. Rogers Assistant Secretary 15th February 1991.