Craft operating on the Union inland waterways referred to in Article 4 shall carry the following original documents:
when operating on a Zone R waterway either:
a certificate issued pursuant to Article 22 of the Revised Convention for Rhine Navigation, or
a Union inland navigation certificate attesting to the full compliance of the craft, where applicable pursuant to the transitional provisions under Annex II to this Directive for craft navigating on the Rhine (Zone R), with technical requirements referred to in Annexes II and V to this Directive, for which equivalency with the technical requirements laid down in application of the Revised Convention for Rhine Navigation has been established in accordance with the applicable rules and procedures;
when operating on other waterways, a Union inland navigation certificate or a certificate issued pursuant to Article 22 of the Revised Convention for Rhine Navigation, including, where applicable, any supplementary Union inland navigation certificates in accordance with Article 8 of this Directive.