Applies to all projects that may be expected to have considerable negative environmental impacts. The Act lists the types of projects that must always be subjected to EIAs, such as motorways, airports, large harbours, and major poultry- and pig-farming facilities.
EIA procedure may also be required for individual projects where harmful environmental impacts are likely, on the basis of decisions made by the regional Centre for Economic Development, Transport and the Environment.
Act on Environmental Impact Assessment Procedure 252/2017 (in Finnish) (Finlex)
Decree on Environmental Impact Assesment Procedure 277/2017 (in Finnish) (Finlex)