Slow Vehicles To Travel On Right Side - Section 147
(1) Any vehicle travelling upon a roadway at less than the normal speed of traffic at that time and place shall, where practicable, be driven in the right-hand lane then available for traffic or as close as practicable to the right hand curb or edge of the roadway. R.S.O. 1990, c. H.8, s. 147 (1).
Exception
(2) Subsection (1) does not apply to a driver of a,
(a) vehicle while overtaking and passing another vehicle proceeding in the same direction;
(b) vehicle while preparing for a left turn at an intersection or into a private road or driveway; or
(c) road service vehicle. R.S.O. 1990, c. H.8, s. 147 (2).