What do you have to when meeting an emergency vehicle with its red lights flashing?

When you encounter an emergency vehicle with its red lights flashing, you must pull over to the right-hand side of the road and stop, allowing the emergency vehicle to pass safely. You should remain stopped until the emergency vehicle has passed and it is safe to proceed. Laws regarding exactly where and how to pull over vary by location, but the overarching principle is to yield the right-of-way and clear a path for the emergency vehicle.