Nebraska Revised Statutes Chapter 60. Motor Vehicles § 60-6,134. Overtaking and passing upon the right; when permitted

(a) When the vehicle to be overtaken is making or about to make a left turn;

(b) Upon a two-way street or highway with an unobstructed roadway, not occupied by parked vehicles, of sufficient width for two or more lanes of moving vehicles going in the same direction when the passing vehicle is traveling in one of such lanes; or

(c) Upon a one-way street, or upon any roadway on which traffic is restricted to one direction of movement, when the roadway is free from obstructions and of sufficient width for two or more lanes of moving vehicles.