10.1.2 Where
the machinery piping arrangements in each hull of a multi-hull craft
are separate and the craft cannot navigate safely with the main propulsion
machinery in one hull out of action, the machinery piping and standby
requirements are to be as detailed in Pt 15, Ch 3, 4.2 Booster pumps 4.2.1, Pt 15, Ch 3, 6.3 Lubricating/hydraulic oil standby arrangements 6.3.1 or Pt 15, Ch 3, 6.3 Lubricating/hydraulic oil standby arrangements 6.3.1.(b), and Pt 15, Ch 3, 7.3 Standby supply 7.3.2, i.e. the requirements
for a single-engined mono-hull craft apply to the machinery in each
hull.
10.1.3 Where
a multi-hull craft can navigate safely with the main propulsion machinery
in one hull out of action, standby pumps need not be provided.