Maryland Transportation Section 21-404
§ 21-404.
  (a)   The driver of a vehicle about to enter or cross a highway from a private road or driveway or from any other place that is not a highway shall stop.
  (b)   The driver of a vehicle about to enter or cross a highway from a private road or driveway or from any other place that is not a highway shall yield the right-of-way to any other vehicle approaching on the highway.
  (c)   In this section, "paved highway" means a highway that has a hard, smooth surface of gravel, shells, crushed stone, paving blocks, asphalt, concrete, or other similar substance.
  (d)   The driver of a vehicle about to enter or cross a paved highway from an unpaved highway shall stop.
  (e)   The driver of a vehicle about to enter or cross a paved highway from an unpaved highway shall yield the right-of-way to any other vehicle approaching on the paved highway.