When passing a vehicle stopped on the side of the road, drivers should:

The Move Over Law protects law enforcement officers, emergency workers, tow truck drivers, sanitation workers, and utility workers stopped along roadways while performing their jobs. You must vacate the lane closest to the stationary emergency vehicle, tow truck, sanitation vehicle, or utility vehicle. If you cannot move over safely, you must slow down to a speed of 20 mph below the posted speed limit.
DMV Writen Test