I don't think there is a law like this in BC, but I think it's something good to have. There are so many people speed through emergency vehicles without thinking the safety of the personnel.
extracted from Vancouver Fire & Rescue Service: When Lights And Sirens Approach
We all share the responsibility of knowing and practising proper driving behaviours. One of the most important "rules of the road" deals with yielding the right of way to emergency vehicles.
What drivers SHOULD do.
Remain calm and move your vehicle appropriately. Don't panic!
Pull to the right and come to a stop.
When on a high-speed road or when there is no room to stop, slow down as much as possible
When in the left lane, pull over into the right lane as the traffic in the lane to your right moves over
If you cannot move to the right because of an obstacle such as a car to your right, simply stop. Your prompt action will let the driver of the emergency vehicle know what you are doing; it will allow the driver to anticipate where to drive.
When an emergency vehicle approaches you from behind while you are stationary at an intersection stop sign or red light, do not move unless you can pull to the right
When on a one-way street, pulling to the right is still the best, but sometimes due to traffic, you may pull to the left curb and yield to the middle lane(s). This is the one appropriate exception to the "pull to the right" rule
What drivers SHOULD NOT do.
Don't stop in the middle lane when there is room to pull to the right
Don't pull to the left in the centre yellow lane or left turn lane
Don't drive through a red light or stop sign when an emergency vehicle approaches from behind
Don't turn quickly to the left into a driveway or street
Don't race ahead to get through a green light or turn before the emergency vehicle gets there
Don't disregard the presence of the emergency vehicle by continuing to drive on
I think it was last week ~I was planning to go Aberdexn with my parents, I was driving Southbound on Hazelbridge way, just passed Cambie... then I saw a firetruck stopped on the right lane (NOT the parallel parking spots) with red lights flashing outside of Aberdexn Starbuckx... I thought, "wa.... maybe the fire alarm just went off?" But as I was trying very hard to change lane to go around that firetruck, my mom said, "What?!!! the firefighters are drinking coffee OUTSIDE OF Starbuckx !!! "
So there were the firefighter, drinking coffee, sitting comfortably outside of that coffee shop, with their Firetruck flashing red lights occupying one of the two lanes on that busy road !!!
講真﹐你飲還飲﹐洗唔洗o甘揚要坐出面飲呀.... sigh..