Yukon Territory is not in the IRP and does not issue APPORTIONED plates. The "PUBLIC CARRIER" plates below may have been used in the late 70s and early 80s for trucks that operated both inside and outside of the territory.
1979	1981
Currently, it is required that any truck from an IRP jurisdiction which enters into Yukon Territory also bear a COMMERCIAL license plate from Yukon.
British Columbia apportioned plate with Yukon commercial plate and Alaska plate Picture from Manny Jacob	1998 COMMERCIAL From my collection