Maryland Code, Transportation § 11-103.3

(1)(i) Is designed for off-highway use;

(ii) Operates on at least three low-pressure tires;

(iii) Has a seat or saddle designed to be straddled by the operator;

(iv) Has handlebars for steering;

(v) Is intended by the manufacturer to be operated by a single operator; and

(vi) May be designed to carry one passenger; or

(2)(i) Is designed for off-highway use;

(ii) Operates on four or more low-pressure tires;

(iii) Has a bench or bucket-style seating; and

(iv) Has a steering wheel for steering.