Cal. Veh. Code § 22100 : CALIFORNIA VEHICLE CODE — RULES OF THE ROAD — TURNING AND STOPPING AND TURNING SIGNALS — Turning upon highway

Except as provided in Section 22100.5 or 22101, the driver of any vehicle intending to turn upon a highway shall do so as follows:

(a) Right Turns. Both the approach for a right-hand turn and a right-hand turn shall be made as close as practicable to the right-hand curb or edge of the roadway except:
(1) Upon a highway having three marked lanes for traffic moving in one direction that terminates at an intersecting highway accommodating traffic in both directions, the driver of a vehicle in the middle lane may turn right into any lane lawfully available to traffic moving in that direction upon the roadway being entered.
(2) If a right-hand turn is made from a one-way highway at an intersection, a driver shall approach the turn as provided in this subdivision and shall complete the turn in any lane lawfully available to traffic moving in that direction upon the roadway being entered.
(3) Upon a highway having an additional lane or lanes marked for a right turn by appropriate signs or markings, the driver of a vehicle may turn right from any lane designated and marked for that turning movement.
(b) Left Turns. The approach for a left turn shall be made as close as practicable to the left-hand edge of the extreme left-hand lane or portion of the roadway lawfully available to traffic moving in the direction of travel of the vehicle and, when turning at an intersection, the left turn shall not be made before entering the intersection. After entering the intersection, the left turn shall be made so as to leave the intersection in a lane lawfully available to traffic moving in that direction upon the roadway being entered, except that upon a highway having three marked lanes for traffic moving in one direction that terminates at an intersecting highway accommodating traffic in both directions, the driver of a vehicle in the middle lane may turn left into any lane lawfully available to traffic moving in that direction upon the roadway being entered.

Ca. Veh. Code § 22100

Amended by Stats 2004 ch 183 (AB 3082),s 353, eff. 1/1/2005