1. flat-rate security - The circumstances in which and the conditions under which a flat-rate security may be provided shall be determined in accordance with the procedure of the committee.
2. Except in the cases referred to in paragraphs 2 and 3, the office of departure shall not require a guarantee in excess of the flat-rate amount of ECU 7 000 for each Community transit declaration, irrespective of the amount of duties and other charges relating to the goods covered by a particular declaration... Where, because of circumstances peculiar to it, a transport operation involves increased risks and for that reason the guarantee of ECU 7 000 is clearly insufficient, the office of departure may require a guarantee of a greater amount in multiples of ECU 7 000 in order to guarantee the duties relating to the total quantity of goods to be dispatched.