The Committee of the Regions (CoR) is the political assembly that provides the regional and local levels with a voice in EU policy development and EU legislation.

The Treaties oblige the Commission, Parliament and Council to consult the Committee of the Regions whenever new proposals are made in areas that affect the regional or local level. The CoR has 344 members from the 27 EU countries, and its work is organised in 6 different commissions. They examine proposals, debate and discuss in order to write official opinions on key issues.