Under EU law
projects which are likely to have a big impact on the environment can only be granted planning permission after an assessment of the environmental impacts has been carried out. These assessments are called Environmental Impact Assessments.
On the Environmental Impact Assessment portal you can find:
applications for development consent that are subject to an EIA, including development, works or activities,
access to these applications and links to the relevant information and documents associated with the application held by the relevant authorities responsible for approving such applications (known as competent authorities).
The EIA Portal facilitates an early and effective opportunity for any person to participate in the decision making procedures where EIA is required.