paragraph 2. To this end, the Commission shall be assisted by a committee. The committee shall adopt its rules of procedure. This assistance shall fund institution-building projects and limited small-scale investments ancillary thereto. The appropriations shall be authorised by the budgetary authority within the limits of the financial perspective. One twelfth of each annual amount shall be payable to Bulgaria and Romania on the first working day of each month in the corresponding year. The lump-sum payments shall be used within three years from the first payment. Any unused or unjustifiably spent funds shall be recovered by the Commission. The Commission may adopt any technical provisions necessary for the operation of the temporary Cash-flow and Schengen Facility. The measures thus decided on shall be applicable forthwith, shall take