2.1. For the purposes of this Regulation, the gross vehicle weight rating is the value specified by the manufacturer as the weight of a single loaded vehicle under the name “gross vehicle weight rating”, “GVWR”, “poids nominal brut du véhicule” or “PNBV”.
In the following cases, the gross vehicle weight rating is the value established by an engineer:(1) where there is no document from the manufacturer specifying the weight;
(2) where the value specified by the manufacturer is obsolete because of the changes made to the vehicle.
The gross vehicle weight rating of a vehicle made by hand is the value established by an engineer. The gross vehicle weight rating may also be established, in the case of a trailer made by hand, by multiplying the sum of the load capacity of the trailer’s tires by 1.1 and, in the case of a semi-trailer made by hand, by multiplying the sum of the load capacity of the semi-trailer’s tires by 1.25.
For the purposes of this section, an engineer is a person who is a member of the Ordre des ingénieurs du Québec or any other person legally authorized to practise the profession in Québec.