277. Protective structure of self-propelled vehicles: The following self-propelled vehicles manufactured on or after 2 August 2001 shall be provided before 28 January 2002 with a roll-over protective structure which meets the CSA B352-M1980 Roll-over Protective Structures standard for farm, construction, landscaping, forestry, industrial and mining vehicles:(1) industrial tractors, motor graders, prime movers, tracked hauling machines, crawler tractors, tracked loaders, wheeled tractors and wheeled loaders, whose mass is greater than 700 kg;
(2) compacting machines and rollers whose mass is greater than 2,700 kg, except machines designed for compacting asphalt;
(3) wheeled agricultural tractors of more than 15 kW.
This section does not apply to a low profile agricultural tractor when it is used in an orchard.