These Regulations implement, in relation to town and country planning, roads and drainage works in Scotland, Council Directive 85/337/EC on the assessment of the effects of certain public and private projects on the environment. They revoke and re-enact, with amendments, the relevant Parts of the Environmental Assessment (Scotland) Regulations 1988. The main changes made by Directive 97/11/EC, which these Regulations implement, are as follows. The number of categories of project subject to environmental impact assessment (EIA) is increased. An individual determination on whether EIA is required must be made in respect of every project in Annex II to the Directive (Schedule 2 to these Regulations) which exceeds thresholds established by a Member State. Advice on the content of an environmental statement must be given to a developer who requests it before submitting an application. Competent authorities must give reasons for their decision on granting or refusing development consent. The Directive establishes detailed procedures for consulting other Member States on projects which are likely to have significant environmental effects in their territories. The regulations are divided into Parts; Introductory (I); Town and country planning (II); Roads (III); Drainage works (IV);. General (V).