Every ocean going vessel lying at a berth and secured, except river boats,
shall have safety nets suspended below any landing stage or gangplank as will
prevent any person from falling into the water in the event any person slips off
the landing. The nets must extend at least 5 feet past each side of all
gangways. Safety nets may be regular cargo nets, tarpaulins, sailcloth,
canvas, or any other material that is pliable and of sufficient strength to hold
the body of an adult person who may fall from the gangway.
EXCEPTION: This regulation may be waived by the Harbor