The number of new vehicles to be tested per year of production ensures that the relevant variations of components, separate technical units or systems used are covered by the verification testing procedure. The vehicle selection for the verification test shall be based on following requirements:

1. (a)

   The vehicles for verification test shall be selected out of the vehicles from the production line for which a value of CO₂ emissions and fuel consumption has been determined and declared in accordance with Article 9. The components, separate technical units or systems mounted in or on the vehicle shall be out of series production and shall correspond to those mounted at production date of the vehicle.

2. (b)

   The vehicle selection shall be made by the approval authority that granted the licence to operate the simulation tool based on proposals from the vehicle manufacturer.

3. (c)

   Only vehicles with one driven axle shall be selected for verification test.

4. (d)

   It is recommended to include in each verification test relevant data set engine, axle and transmission with highest sales numbers per manufacturer. The components, separate technical units or systems may be tested all in one vehicle or in different vehicles, under the condition that each component is covered by minimum one verification test on one vehicle.

5. (e)

   Vehicles which use standard values for CO₂ certification of their components, separate technical units or systems instead of measured values for the transmission and for the axle losses shall not be selected for the verification test as long as vehicles complying with the requirements in points a) to c) and using measured loss maps for these components, separate technical units or systems in the CO₂ certification, are produced.

6. (f)

   The minimum number of different vehicles with different combinations of verification test relevant data sets to be tested by verification test per year shall be based on the sales numbers of the vehicle manufacturer as set out in Table 1:

   Table 1
   Determination of the minimum number of vehicles to be tested by the vehicle manufacturer
   Number of vehicles to be tested	Verification testing procedure relevant vehicles produced/year
   1	1-25 000
   2	25 001-50 000
   3	50 001-75 000
   4	75 001-100 000
   5	more than 100 000

7. (g)

   The vehicle manufacturer shall finalize the verification test within a period of 10 months after the date of selection of the vehicle for the verification test.