['Size and Weight Limits']
['Weights and dimensions']
03/25/2026
...
Ontario
Highway Traffic Act
Part VIII: Weight
(1) Subject to section 110, during a reduced load period no commercial motor vehicle or trailer, other than a public vehicle or a vehicle referred to in subsection (2), shall be operated or drawn upon any designated highway where the weight upon an axle exceeds 5,000 kilograms. R.S.O. 1990, c. H.8, s. 122 (1).
Note: On a day to be named by proclamation of the Lieutenant Governor, subsection 122 (1) of the Act is amended by striking out "a public vehicle or". (See: 2020, c. 34, Sched. 23, s. 7 (14))
Idem
(2) Subject to section 110, during a reduced load period,
(a) no two axle tank-truck, while used exclusively for the transportation of liquid or gaseous heating fuel;
(b) no two axle truck, while used exclusively for the transportation of livestock feed; and
(c) no vehicle transporting live poultry,
shall be operated upon any designated highway where the weight upon an axle exceeds 7,500 kilograms. R.S.O. 1990, c. H.8, s. 122 (2).
Idem
(3) Subject to section 110, during a reduced load period no vehicle having a carrying capacity in excess of 1,000 kilograms, other than a motor vehicle or trailer, shall be operated upon any designated highway where the weight upon any millimetre in the width of a tire exceeds five kilograms. R.S.O. 1990, c. H.8, s. 122 (3).
Exceptions
(4) Subsections (1) and (3) do not apply to,
(a) vehicles operated by or on behalf of a municipality or other authority having jurisdiction and control of a highway, where the vehicles are engaged in highway maintenance, including the carriage and application of abrasives or chemicals to the highway, the stockpiling of abrasives or chemicals for use on a highway, or the removal of snow from a highway;
(b) vehicles used exclusively for the transportation of milk;
(c) fire apparatus;
(d) vehicles operated by or on behalf of a municipality transporting waste; or
(e) public utility emergency vehicles. R.S.O. 1990, c. H.8, s. 122 (4); 2009, c. 5, s. 39.
Note: On a day to be named by proclamation of the Lieutenant Governor, subsection 122 (4) of the Act is amended by striking out "or" at the end of clause (d), by adding "or" at the end of clause (e) and by adding the following clause: (See: 2020, c. 34, Sched. 23, s. 7 (15))
(f) vehicles used to transport passengers for compensation, other than those operated solely within the limits of one municipality.
Designation
(5) An official of the Ministry authorized by the Minister in writing may designate the date on which a reduced load period shall start or end and the King's Highway or highway in territory without municipal organization, or portion thereof, to which the designation applies. R.S.O. 1990, c. H.8, s. 122 (5).
Legislation Act, 2006, Part III
(6) A designation under subsection (5) is not a regulation within the meaning of Part III (Regulations) of the Legislation Act, 2006. R.S.O. 1990, c. H.8, s. 122 (6); 2006, c. 21, Sched. F, s. 136 (1).
Designation by municipality
(7) The municipality or other authority having jurisdiction over a highway may by by-law designate the date on which a reduced load period shall start or end and the highway or portion thereof under its jurisdiction to which the designation applies. R.S.O. 1990, c. H.8, s. 122 (7); 2002, c. 17, Sched. F, Table.
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© King's Printer for Ontario, 2012-2021. The text is not the official version of Ontario's Highway Traffic Act or associated regulations. For official text, refer to www.ontario.ca/laws.
['Size and Weight Limits']
['Weights and dimensions']
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