Slow Down and Move Over, pretty straight forward rule to follow to our keep roadside workers safe. In a nutshell: if you see any vehicle flashing red, blue or yellow lights on a BC highway, slow down and move over to pass.
Slow Down, Move Over rule states:
Drivers must slow their speed to 70km/h when in an 80km/h or over zone, and 40km/h when in an under 80km/h zone. If travelling on a multi-lane road, the driver must move into another lane to pass when passing stopped vehicles with a flashing light, where safe to do so.