If a vehicle stops on a road without a pavement when is there an obligation to wear a reflective traffic vest?

If the vehicle has two vests, two persons are permitted to step out of the vehicle wearing vests.

If one of the passengers wore a vest and stepped out of the vehicle before the driver, then the driver is not required to wear a vest.

When the driver or a passenger alights from a vehicle on an inter-urban road.

The driver must wear a reflective vest upon stepping out of the vehicle.