Maryland Code, Transportation § 21-1205.2

(2)(i) A local authority or State agency that has jurisdiction over a bicycle path may prohibit the operation of a Class 1 or Class 2 electric bicycle on the bicycle path.

(ii) A Class 3 electric bicycle may not be operated on a bicycle path unless:

(iii) A local authority or State agency with jurisdiction over a trail may regulate the use of electric bicycles of any class on a trail designated as nonmotorized if the trail has a natural surface tread made by clearing and grading native soil with no added surfacing materials.