37.21. Until 31 December 2019, the provisions of Schedule B concerning equalization of the mass that may be measured under the wheels of each axle of class B.44 or B.45 do not apply to a vehicle assembled before 1 October 1998.
The first paragraph does not exempt a triple axle forming a combination of axles of class B.44 or B.45 from the obligation to be equipped with a suspension designed to balance, to within 1,000 kg, at all times, the mass that may be measured under the wheels of each of the 3 axles.