Section 22101 Of Chapter 6. Turning And Stopping And Turningsignals From California Vehicle Code >> Division 11. >> Chapter 6.
22101
. (a) The Department of Transportation or local authorities in
respect to highways under their respective jurisdictions, may cause
official traffic control devices to be placed or erected within or
adjacent to intersections to regulate or prohibit turning movements
at such intersections.
(b) When turning movements are required at an intersection notice
of such requirement shall be given by erection of a sign, unless an
additional clearly marked traffic lane is provided for the approach
to the turning movement, in which event notice as applicable to such
additional traffic lane shall be given by any official traffic
control device.
(c) When right- or left-hand turns are prohibited at an
intersection notice of such prohibition shall be given by erection of
a sign.
(d) When official traffic control devices are placed as required
in subdivisions (b) or (c), it shall be unlawful for any driver of a
vehicle to disobey the directions of such official traffic control
devices.