Position of structures, openings, and fittings.

For the purposes of this part— (a) Position 1 means in an exposed position on— (1) The freeboard deck or a raised quarter deck; (2) A superstructure deck or a trunk deck and forward of a point 1/4 L from the forward perpendicular; or (3) A trunk deck whose height is less than H s . (b) Position 2 means— (1) On a superstructure deck aft of a point 1/4 L abaft the forward perpendicular; or (2) On a superstructure and trunk combination, that is H s or more n height, aft or a point 1/4 L abaft the forward perpendicular.