§ 21664
49 words·~1 min read·
/ca/vehicle-code/21664A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
It is unlawful for the driver of any vehicle to enter or exit any freeway which has full control of access and no crossings at grade, except upon a designated on ramp with respect to entering the freeway or a designated off ramp with respect to exiting the freeway.