3. The following are the characteristics of road trains for which a special permit may be issued:(1) the total loaded mass of the tractor and semi-trailer in a train double referred to in paragraph 4 of section 2 is within the limits authorized by the Vehicle Load and Size Limits Regulation (chapter C-24.2, r. 31), plus 2,000 kg, and, in the case of other road trains, the total loaded mass does not exceed 67,500 kg;
(2) the tractor has a minimum horsepower of 1 hp per 180 kg of the road train’s total loaded mass and is equipped with an air compressor with a capacity of at least 425 litres per minute supplying the braking system;
(3) the first semi-trailer has a maximum length of 16.20 m and, in the case of the first semi-trailer in a B train double, a minimum length of 12 m, and a minimum length of 13.50 m in all other cases;
(4) the second semi-trailer has a maximum length of 16.20 m and a minimum length of 12 m;
(5) the combination of vehicles is equipped with a driver monitoring system that records significant speed variations and relevant data on the date, time and speed;
(6) the combination of vehicles constitutes an outsized vehicle only as regards its length and, where applicable, its total loaded mass;
(7) in the case of a train double referred to in paragraph 1, 2 or 3 of section 2, the rear of the second semi-trailer is equipped with a rigid sign that measures 230 cm to 245 cm by 30 cm, kept free of any object, substance or dirt, bearing the words “TRAIN ROUTIER” in E-series Highway Gothic font 20 cm high, in white on a red background, consisting of Type III high-intensity retroreflective sheeting that meets Ministère des Transports Standard 14101 appearing in Chapter 14 of Tome VII - “Matériaux in the Normes – Ouvrages routiers” collection; a sign with a coefficient of retroreflectivity that is less than 50% of the value specified in Standard 14101 must not be used;
(8) the semi-trailer with the greatest total loaded mass must be hitched to the tractor, except where the difference in mass is less than 10%;
(9) the vehicles are positioned in such a manner that when the road train travels in a straight line, no semi-trailer can swing more than 80 mm to either side of the tractor; and
(10) where relevant, the dolly is equipped with a pilot relay valve designed to boost the braking signal of the second semi-trailer and, in the case of a C train double, the dolly meets the requirements of section 903 of the Motor Vehicle Safety Regulations (C.R.C., c. 1038) made under the Motor Vehicle Safety Act (S.C. 1993, c. 16).