Specific rules should be laid down for situations of crisis characterised by mass arrivals and for force majeure, to allow Member States to extend the time limits set out in under strict conditions where it is impossible to comply with those time limits due to the extraordinary situation. Such extension should apply simultaneously to the time limits set out for sending and replying to take charge requests and take back notifications as well as the time limit to transfer an applicant to the Member State responsible. The time limits should be extended irrespective of whether that Regulation provides for shorter time limits for certain situations.