(a) Each diving ladder must -
(1) Be capable of supporting the weight of at least two divers;
(2) Extend 3 feet below the water surface;
(3) Be firmly in place;
(4) Be available at the dive location for a diver to enter or exit the water unless a diving stage or bell is provided; and
(5) Be -
(i) Made of corrosion-resistant material; or
(ii) Protected against and maintained free from injurious corrosion.
(b) Each diving stage must -
(1) Be capable of supporting the weight of at least two divers;
(2) Have an open-grating platform;
(3) Be available for a diver to enter or exit the water from the dive location and for in-water decompression if the diver is -
(i) Wearing a heavy-weight diving outfit; or
(ii) Diving outside the no-decompression limits, except when a bell is provided; and
(4) Be -
(i) Made of corrosion-resistant material; or
(ii) Protected against and maintained free from injurious corrosion.