Hong Kong Regulations

ROAD TRAFFIC (REGISTRATION AND LICENSING OF VEHICLES) REGULATIONS - REGULATION 46

Trade licence not transferable

A trade licence shall not be used by any person other than the holder of the
trade licence and the holder of a trade licence shall not allow or suffer the
trade licence or the trade plates issued to him to be used by any other person
but this regulation shall not be contravened if the holder of a trade licence
or a person bona fide in his employ and acting under his authority is present
and in charge of the vehicle or if such vehicle is constructed for use by one
person only and is being used by a prospective purchaser for the purpose of
test or trial.