Question:  Do slower moving cars need to keep right?

 

Answer:  Section 21654 of the California Vehicle Code says:  (a) Notwithstanding the prima facie speed limits, any vehicle proceeding upon a highway at a speed less than the normal speed of traffic moving in the same direction at such time shall be driven in the right-hand lane for traffic or as close as practicable to the right-hand edge or curb

 

The word “Notwithstanding” means that even if a driver is moving 70 mph in a posted 70 mph freeway, if other drivers are moving at 75 mph, the 70 mph driver must keep right.  See http://www.dmv.ca.gov/pubs/vctop/d11/vc21654.htm for more.