This Decree provides for the registration, purchase, sale and building of seagoing ships. This Decree's provisions on ship registration are also applicable to the registration of public-duty ships. This Decree applies to Vietnamese and foreign organizations and individuals involved in ship registration, purchase, sale and building. Ship registration may take the following forms: a) Indefinite ship registration; b) Definite ship registration; c) Ship re-registration; d) Registration of change; dd