Neither the constitutional status nor the performance of the constitutional functions of the Federal Constitutional Court or its judges may be impaired. The law governing the Federal Constitutional Court may be amended by a law enacted by the Joint Committee only insofar as the Federal Constitutional Court agrees is necessary to ensure that it can continue to perform its functions. Pending the enact­ment of such a law, the Federal Constitutional Court may take such measures as are necessary to this end. Determi­nations by the Federal Constitutional Court pursuant to the second and third sentences of this Article shall be made by a majority of the judges present.