22.2.1 Bulwarks, guardrails and guardwires should
be supported efficiently by stays or stanchions. When application
of such measures would impede the proper working of the vessel, alternative
safety measures should be considered, for guidance ISO 15085 refers.
22.2.2 To protect persons from falling overboard,
and when the proper working of the vessel is not impeded and there
are persons frequently on the deck, bulwarks or three courses of rails
or taut wires should be provided and the bulwark top or top course
should be not less than 1000mm above the deck (in accordance with
Load Line rules). The distance between the lowest course and the deck
should not exceed 230mm and the distance between other courses should
not exceed 380mm.
22.2.3 In a vessel fitted with a cockpit which
opens aft to the sea, additional guardrails should be fitted so that
there is no unprotected vertical opening (i.e. between vertical 'members')
greater than 500mm in width.
22.2.4 For vessels operating in Category 6, where
it is impractical and unnecessary to fit guardrails, alternative arrangements
may be acceptable subject to the Certifying Authority being satisfied
as to the adequacy of the proposed arrangements. For example, on small
motor vessels with narrow side decks alongside a deck house, a handrail
on the side of the deckhouse may be fitted. On the foredeck, a centreline
handrail may be considered more workable.
22.2.5 Handrails should be provided for access
stairways, ladderways, passageways and for decks without bulwarks
or guardrails. This provision should not be used in lieu of guardrails
and bulwarks where required by the Code.
22.2.6 In an inflatable boat or a rigid inflatable
boat, handgrips, toeholds and handrails should be provided as necessary
to ensure safety of all persons on board during transit and the worst
weather conditions likely to be encountered in the intended area of
operation.