.6 craft of less than 30 m in length may be exempted from carrying a rescue boat, provided the craft meets all of the following requirements: (
.6.1 the craft is arranged to allow a helpless person to be recovered from the water in a horizontal or near-horizontal body position;
.6.2 recovery of the helpless person can be observed from the navigating bridge; and
.6.3 the craft is sufficiently manoeuvrable to close in and recover persons in the worst intended conditions.
|1.4.33 "Length (L)" means the overall length of the underwater watertight envelope of the rigid hull, excluding appendages, at or below the design waterline in the displacement mode with no lift or propulsion machinery active.