Maryland Transportation Section 22-405.3

      If a new Class A passenger vehicle is sold in this State, the manufacturer shall equip the vehicle with a spare tire that conforms with the requirements in § 22-405 of this subtitle, unless:

            (1)      The tire-wheel system of the vehicle provides a run-flat capability by which a partially inflated driving surface becomes available in the event of a tire failure; or

            (2)      Technological improvements, consistent with applicable federal motor vehicle safety standards, become available.