1. Any Member State which wishes to participate in enhanced cooperation in progress in one of the areas referred to in Article 329(1) shall notify its intention to the Council and the Commission.

The Commission shall, within four months of the date of receipt of the notification, confirm the participation of the Member State concerned. It shall note where necessary that the conditions of participation have been fulfilled and shall adopt any transitional measures necessary with regard to the application of the acts already adopted within the framework of enhanced cooperation.

However, if the Commission considers that the conditions of participation have not been fulfilled, it shall indicate the arrangements to be adopted to fulfil those conditions and shall set a deadline for re-examining the request. On the expiry of that deadline, it shall re-examine the request, in accordance with the procedure set out in the second subparagraph. If the Commission considers that the conditions of participation have still not been met, the Member State concerned may refer the matter to the Council, which shall decide on the request. The Council shall act in accordance with Article 330. It may also adopt the transitional measures referred to in the second subparagraph on a proposal from the Commission.

2. Any Member State which wishes to participate in enhanced cooperation in progress in the framework of the common foreign and security policy shall notify its intention to the Council, the High Representative of the Union for Foreign Affairs and Security Policy and the Commission.

The Council shall confirm the participation of the Member State concerned, after consulting the High Representative of the Union for Foreign Affairs and Security Policy and after noting, where necessary, that the conditions of participation have been fulfilled. The Council, on a proposal from the High Representative, may also adopt any transitional measures necessary with regard to the application of the acts already adopted within the framework of enhanced cooperation. However, if the Council considers that the conditions of participation have not been fulfilled, it shall indicate the arrangements to be adopted to fulfil those conditions and shall set a deadline for re-examining the request for participation.

For the purposes of this paragraph, the Council shall act unanimously and in accordance with Article 330.