http://www.legislation.gov.uk/nisr/1994/104/article/2/made

The Alkali, &c. Works (Amendment) Order (Northern Ireland) 1994

Waste policies and regulation

Incineration

Government Printer for Northern Ireland

2016-10-12

CLEAN AIR

The discharge of certain noxious or offensive gases from certain types of works is subject to control under the Alkali, &c. Works Regulation Act 1906 (“the Act of 1906”). Article 25(9) of the the Clean Air (Northern Ireland) Order 1981 empowers the Department to make orders varying or adding to the list of works in the Act of 1906. The existing list of such works is set out in the First Schedule to the Act of 1906, as substituted by the Alkali, &c. Works Order (Northern Ireland) 1991.