In article 3(5) (use classes) of the Planning (Use Classes) Order (Northern Ireland) 198915, after sub-paragraph (k) insert “(l) as a waste disposal installation for the incineration, chemical treatment (as defined in Annex IIA to Directive 75/442/EEC16 under heading D9), or landfill of waste (that is to say, waste to which Directive 91/689/EEC17 applies).”.