The Committee of the Regions shall be consulted by the European Parliament, by the Council or by the Commission where the Constitution so provides and in all other cases in which one of these institutions considers it appropriate, in particular those which concern cross-border cooperation.

The European Parliament, the Council or the Commission shall, if it considers it necessary, set the Committee, for the submission of its opinion, a time-limit which shall not be less than one month from the date on which the chairman receives notification to this effect. Upon expiry of the timelimit, the absence of an opinion shall not prevent further action.

Where the Economic and Social Committee is consulted, the Committee of the Regions shall be informed by the European Parliament, the Council or the Commission of the request for an opinion. Where it considers that specific regional interests are involved, the Committee of the Regions may issue an opinion on the matter. It may also issue an opinion on its own initiative.