(a) The opening through which the Coxswain enters and exits shall be at least 2.30 feet (70 cm.) long when measured along the longitudinal axis of the boat. For a length of at least 1.64 feet (50 cm.), the opening shall be as wide as the inner hull of the boat itself.
(b) The inner surface within which the Coxswain’s body rests shall be smooth and free of any obstacles, devices, or other structures that would hinder quick exit.