(3)ECB supervisory decisions may contain obligations or requirements which the addressee must fulfil by a specific deadline, where this is necessary in order to ensure a proper implementation of the decision or other requirements. On the request of supervised entities, the ECB may extend the deadline for obligations or requirements by means of another supervisory decision, where this is considered reasonable. Moreover, on the request of proposed acquirers, the ECB may extend the maximum period for concluding the proposed acquisition of a qualifying holding in a credit institution.