Drive on Right Side of Highway: Exceptions. (a) Upon all highways of sufficient width a vehicle or bicycle shall be operated upon the right half of the roadway, except as follows: (1) When overtaking and passing another vehicle proceeding in the same direction under the rules governing such movement. (2) When the right half of a highway is closed to traffic. (3) Upon a highway designated and sign-posted for one-way traffic. (b) The director shall by regulation determine a distinctive highway marking to indicate no driving over that marking. The director may, either by that marking or by signs and markings, designate any portion of a highway where the volume of traffic or the vertical or other curvature of the highway renders it hazardous to drive on the left of the marking or signs and markings. When the markings or signs and markings are in place, the operator of a vehicle may not operate along the highway to the left thereof. This does not prevent turning to the left across any such markings at any intersection or private driveway. (c) It is unlawful to operate any vehicle or bicycle upon any highway which has been divided into two or more lanes by means of intermittent barriers or by means of a dividing section of not less than two feet in width either unpaved or delineated by curbs, lines or other markings on the lanes except to the right of the barrier or dividing section. It is also unlawful to operate any vehicle over, upon, or cross any dividing section, or to make any left turn or semicircular or U-turn on any such divided highway, except through an opening in the barrier designed and intended by proper authorities for the use of vehicles or through a plainly marked opening in the dividing section. Source: PL 3-61, § 1 (§ 511). Commission Comment: With respect to the references to the “director” of the Department of Public Safety, see Executive Order 94-3 (effective August 23, 1994), reorganizing the executive branch, changing agency names and official titles, and effecting other changes, set forth in the Commission comment to 1 CMC § 2001.