Acting on a proposal from the Commission , the Council will set emission limit values , in accordance with the procedures laid down in the Treaty , for:- the categories of installations listed in Annex I except for the landfills covered by categories 5.1 and 5.4 of that Annex , and- the polluting substances referred to in Annex III , for which the need for Community action has been identified , on the basis , in particular , of the exchange of information provided for in Article 16.2 .