Simplify Your Oversize/Overweight Loads
The maximum axle load is the lesser of the following loads:
For the purposes of subparagraph 1 of the first paragraph, in the case of double wheels, the maximum load of the inner tire is, unless proven otherwise, the same as that of the outer tire.
The provisions of subparagraph 1 of the first paragraph concerning the maximum load of a 10 kg tire per mm of nominal width of the tread and those of subparagraph b of subparagraph 3 of the first paragraph do not apply to a self-steering axle belonging to class B.44, where the width of the single wheel tires is at least 365 mm, or to class B.45, where the width of the single wheel tires is at least 385 mm.
The load limit of an axle or combination of axles, in a normal period or in a period of thaw or rain, belonging to a class in Schedule B is as follows:
The axle load limits during a normal period apply during a period of thaw or rain on a public highway belonging to the special class or to a tow truck hauling a vehicle that has been in an accident or has broken down, been seized or abandoned and, in all cases, without a load.
The maximum total loaded mass of a road vehicle or combination of road vehicles shall be the lesser of:
The total loaded mass computed by adding the approved maximum axle loads in subparagraphs 1, 2 or 3 of the first paragraph of section 13 for each class of axles of that road vehicle without exceeding, for class B.1, 5,500 kg in the case of a tractor and 7,250 kg in the case of the other vehicles, for class B.3, 13,000 kg and for class B.2, 14,000 kg.
On a public highway belonging to the “special” class, the maximum total loaded mass of a combination of road vehicles belonging to classes A.40 to A.69 shall be computed by adding the maximum axle loads prescribed by section 13 for each class of axle of that combination of road vehicles increased by 10% without exceeding 60,000 kg.
On a public highway belonging to the “special” class, the maximum total loaded mass of a combination of road vehicles consisting of 3 vehicles shall be computed by adding the maximum axle loads prescribed by section 13, up to and including:
Source of information: http://www.bv.transports.gouv.qc.ca/per/0937584/01_2005.pdf
https://saaq.gouv.qc.ca/fileadmin/documents/publications/obligations-heavy-vehicles-users.pdf
http://legisquebec.gouv.qc.ca/en/ShowDoc/cr/C-24.2,%20r.%2031