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Convention on Environmental Impact Assessment

Published: January 2015

Convention on Environmental Impact Assessment in a Transboundary Context

The text of the Convention, as published in 2015 (ECE/MP.EIA/21).

The Espoo (EIA) Convention sets out the obligations of Parties to assess the environmental impact of certain activities at an early stage of planning. It also lays down the general obligation of States to notify and consult each other on all major projects under consideration that are likely to have a significant adverse environmental impact across boundaries (see some examples).

The Convention was adopted in 1991 and entered into force on 10 September 1997 (see which countries are Parties to the Convention). Read more about the history of the Convention »