Maryland Labor and Employment Section 9-230
§ 9-230.
  (a)   (1)   In this section the following words have the meanings indicated.
    (2)   "Ridesharing" has the meaning stated in § 11-150.1 of the Transportation Article.
    (3)   "Vanpool operation" has the meaning stated in § 11-175.1(a) of the Transportation Article.
  (b)   This section applies only with respect to a vanpool operation in which the vehicle:
    (1)   is leased, operated, or owned by an employer for ridesharing;
    (2)   operates between the residence and place of employment of the passengers; and
    (3)   is insured in accordance with § 13-422 of the Transportation Article.
  (c)   An individual is a covered employee while operating a vehicle in a vanpool operation as part of the duties of the individual for the employer.
  (d)   A passenger in a vanpool operation is not a covered employee.