You must also have the or of the conduction sticker to make it valid. The validity of the conduction sticker really depends on the o.r. because they can extend the validity from the basic of 7 days to an additional of 7 days again. Happened to me when I got my crv. Honda Shaw provided me with the o.r. for 7 days since my plate number and its corresponding o.r. and c.r. is not yet available they gave me another o.r. for an extention of the conduction sticker. But usually they dont get the o.r. and the police base their judgement of no plate no travel on the date when you bought your car.