Maryland Transportation Section 14-101

      (a)      This title does not apply to the following:

            (1)      A vehicle moved only by human or animal power; or

            (2)      A self-propelled invalid:

                  (i)      Wheelchair; or

                  (ii)      Tricycle.

      (b)      This title does not apply to the following unless a certificate of title has been issued for them under Title 13 of this article:

            (1)      Any farm equipment; or

            (2)      Any special mobile equipment.