Class B, C and D passenger ships built in aluminium alloy after 20 December 2017, for a period of 10 years after that date; and
longa paisinéirí a thógtar le cóimhiotal alúmanaim tar éis an 20 Nollaig 2017 ar d'Aicme B, d'Aicme C nó d'Aicme D iad, go ceann tréimhse 10 mbliana tar éis an dáta sin; agus