Section 21751 Of Article 3. Overtaking And Passing From California Vehicle Code >> Division 11. >> Chapter 3. >> Article 3.

. On a two-lane highway, no vehicle shall be driven to the left side of the center of the roadway in overtaking and passing another vehicle proceeding in the same direction unless the left side is clearly visible and free of oncoming traffic for a sufficient distance ahead to permit such overtaking and passing to be completely made without interfering with the safe operation of any vehicle approaching from the opposite direction.