Article 21c 2.

The delegation of power referred to in Article 20 shall be conferred on the Commission for a period of four years from 9 December 2011. The Commission shall draw up a report in respect of the delegated power at the latest six months before the end of the four-year period. The delegation of power shall be tacitly extended for periods of an identical duration, unless the European Parliament or the Council opposes such extension not later than three months before the end of each period.