It is necessary to check that the vehicle deck is vacated by passengers before the ship sails and that they do not again have access until immediately prior to docking.
Is gá a sheiceáil go bhfuil na paisinéirí go léir tar éis deic na bhfeithiclí a fhágáil sula gcuirfear an long chun farraige agus nach mbeidh rochtain acu arís ar an deic go dtí díreach sula dtiocfaidh an long chun cé.