Dredgers, and other vessels, the navigability of which is subsidiary to their main function (excl. floating or submersible drilling or production platforms, fishing vessels and warships), not sea-going
Plavajoči bagri in druga plovila, pri katerih je plovba podrejena njihovi glavni funkciji (razen potapljajočih se vrtalnih ali proizvodnih ploščadi, ribiških in vojnih ladji), ki niso za morsko plovbo