As a matter of urgency, self-contained, maintained emergency lighting units of a type approved by the Department should be fitted to all Ro/Ro passenger ferries in suitable numbers and in such places as may be advised by the Department. It is essential in our view that such units should be watertight - in other words, if the unit should be submerged it should remain alight until the batteries run down. Furthermore, a regular routine check on the condition of this emergency lighting should be a requirement. This could perhaps be a weekly inspection by the ship’s electrical officer followed by logging that all was in order.