Md. Code, Transp. § 11-103.3 : TRANSPORTATION — VEHICLE LAWS - DEFINITIONS; GENERAL PROVISIONS — DEFINITIONS —103.3 - All-terrain vehicle TEXT PDF "All-terrain vehicle" means a motor vehicle that: (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. Md. Code, TR § 11-103.3 Added by 2017 Md. Laws, Ch. 694,Sec. 2, eff. 10/1/2017.