Md. Code, Transportation § 13–603

(a) On request of the buyer of a vehicle to whom the dealer has issued a temporary registration plate, the dealer immediately shall send to the Administration an application completed by the buyer for the annual registration of the vehicle.

(b) On request of the buyer of a vehicle to whom the dealer has issued a temporary registration plate, the dealer immediately shall send to the Administration, the required registration fee collected from the buyer.

(c) If the dealer is not requested to send an application to the Administration for annual registration of the vehicle, the dealer shall notify the Administration of this fact when he complies with § 13-602(c) of this subtitle.