§ 1126. No-passing zones. (a) When official markings are in place
indicating those portions of any highway where overtaking and passing or
driving to the left of such markings would be especially hazardous, no
driver of a vehicle proceeding along such highway shall at any time
drive on the left side of such markings.

(b) The foregoing limitations shall not apply to the driver of a
vehicle turning left while entering or leaving such highway.

(c) Where a two-way left turn lane or a paved and clearly traversible
dividing section separates the travel lanes for traffic proceeding in
opposite directions, the foregoing limitation shall not apply to the
driver of a vehicle traveling within such lane or section for such
distance as is required for safety in preparing to turn left leaving
such highway or in completing a left turn entering such highway.