Maryland Code, Land Use § 20-504

(1) has the legal status of a public road or was dedicated to public use;

(2) corresponds in its exact location with a road shown on a subdivision plat approved by the Commission or with a master plan of transportation or plat adopted by the Commission; or

(3) is on a private right-of-way or easement approved as adequate by the county council in accordance with subsection (b) of this section.

(1) adopt standards to assure that a private right-of-way or easement is adequate to provide access to a lot where a building is proposed to be located; and

(2) delegate to the executive branch or county planning board the authority to approve a private right-of-way or easement that is adequate under item (1) of this subsection.