California Vehicle Code

Sec. § 21454


When lane use control signals are placed over individual lanes, those signals shall indicate and apply to drivers of vehicles as follows:

(a)

Green indication: A driver may travel in any lane over which a green signal is shown.

(b)

Steady yellow indication: A driver is thereby warned that a lane control change is being made.

(c)

Steady red indication: A driver shall not enter or travel in any lane over which a red signal is shown.

(d)

Flashing yellow indication: A driver may use the lane only for the purpose of making a left turn to or from the highway.
Source

Last accessed
Jun. 6, 2016