22.7.1 The surface of a working deck should be
non-slip.
22.7.2 Acceptable surfaces are: chequered plate,
unpainted wood; a non-skid pattern moulded into FRP; non-slip deck
paint; or an efficient non-slip covering.
22.7.3 Particular attention should be paid to
the surface finish of a hatch cover when it is fitted on a working
deck and, for sailing vessels, to sloping coach roof sides where these
effectively constitute a working deck when the vessel is heeled.
22.7.4 In an inflatable boat or rigid inflatable
boat the upper surface of the inflatable buoyancy tube should be provided
with a non-slip finish.