(a) Apron - The area along the waterfront edge of the pier or wharf.
(b) Bulwark - The side of a ship above the upper deck.
(c) Coaming - The raised frame, as around a hatchway in the deck, to keep out water.
(d) Jacob's ladder - A marine ladder of rope or chain with wooden or metal rungs.
(e) Rail, for the purpose of § 1926.605, means a light structure serving as a guard at the outer edge of a ship's deck.