(a) Subject to the requirements of subsection (b) of this section, the driver of a vehicle may overtake and pass to the right of another vehicle only:
(1) If the overtaken vehicle is making or about to make a left turn;
(2) On a highway with unobstructed pavement not occupied by parked vehicles and wide enough for two or more lines of vehicles moving lawfully in the same direction as the overtaking vehicle; or
(3) On any one–way roadway, if the roadway is free from obstruction and wide enough for two or more lines of moving vehicles.
(b) The driver of a vehicle may overtake and pass another vehicle to the right only if it is safe to do so.
(c) (1) Except as provided in paragraph (2) of this subsection and for an operator of a bicycle or motor scooter, a person may not make the movement described under subsections (a) and (b) of this section by driving off the roadway.
(2) The driver of a vehicle may make the movement described under subsections (a) and (b) of this section by driving outside the marked lane onto the shoulder to overtake and pass a vehicle that is making or about to make a left turn if the driver can do so without leaving the paved surface.
Structure Maryland Statutes
Title 21 - Vehicle Laws -- Rules of the Road
Subtitle 3 - Driving on Right Side of Roadway; Overtaking and Passing; Use of Roadway
Section 21-301 - Driving on Right Side of Roadway; Exceptions
Section 21-302 - Passing Vehicles Going in Opposite Directions
Section 21-303 - General Rules Governing Overtaking and Passing Vehicles
Section 21-304 - When Passing on Right Is Permitted
Section 21-305 - Limitations on Overtaking or Driving to Left
Section 21-307 - No-Passing Zones
Section 21-308 - One-Way Highways and Roadways; Rotary Traffic Islands
Section 21-309 - Driving on Laned Roadways
Section 21-310 - Following Too Closely
Section 21-311 - Driving on Divided Highways
Section 21-312 - Entering or Leaving Controlled Access Highways
Section 21-313 - Restrictions on Use of Controlled Access Highways