Means shall be provided to ensure safe, convenient and unobstructed
passage for any person embarking on, or disembarking from, the ship
between the head of the pilot ladder, or of any accommodation ladder
or other appliance, and the ship's deck. Where such passage is by
means of:
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.1 a gateway in the rails or bulwark, adequate
handholds shall be provided;
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.2 a bulwark ladder, two handhold stanchions rigidly
secured to the ship's structure at or near their bases and at higher
points shall be fitted. The bulwark ladder shall be securely attached
to the ship to prevent overturning.