Md. Code Ann., Tax-Gen. § 11-705 — § 11-705

While it is effective, and except as provided under § 11–707(b) of this subtitle, a license authorizes the licensee:
(1) to engage in the business of an out–of–state vendor;
(2) to engage in the business of a retail vendor; or
(3) to engage in the business of a marketplace facilitator.