The countries of South Eastern Europe acknowledge the importance of adhering to multilateral agreements for the joint and coordinated protection of the environment. Multilateral environmental agreements (MEAs) are vital for transforming international environmental norms into binding rules, and since they form the basis for significant parts of the EU environmental acquis, the acceptance and implementation of MEAs is closely linked to the EU approximation process, to which all SEE countries are committed. This brochure outlines the activities undertaken by the REC within the project Support to the Acceptance and Implementation of Multilateral Environmental Agreements in SEE.