COSAC is the main forum where EU national parliaments, the European Parliament and national parliaments of EU candidates consult on European policy issues.

COSAC, founded by the EU Speakers’ Conference in May 1989 and convened for the first time in November 1989 in Paris.

According to article 10 of Protocol 1 annexed to the Treaty of Lisbon regarding the role of national parliaments ‘A conference of Parliamentary Committees for Union Affairs may submit any contribution it deems appropriate to the attention of the European Parliament, the Council and the Commission’. COSAC also encourages exchange of information and best practices between national parliaments and the European Parliament. (www.cosac.eu)