Md. Code, Transportation § 13–601

(a) Except as provided in subsection (b) of this section, the Administration may design temporary registration plates and furnish them to any licensed dealer who:

(1) On the form that the Administration requires, applies for at least five of these plates; and

(2) With the application, submits a fee established by the Administration for each plate.

(b) A wholesale dealer may not apply for temporary registration plates.