Hull Construction Regulations

191 (1) Any opening in the cargo tank deck from which gas emission can occur shall be arranged and positioned in a manner that minimizes the possibility of

• (a) gas being collected in the vicinity of deck machinery and equipment that may constitute an ignition hazard; and

• (b) gas being admitted into enclosed spaces that contain a source of ignition.

(2) For the purposes of subsection (1), the height of the opening above the deck and the discharge velocity of the gas shall be determined having regard to the distance of any outlet from any deckhouse opening or source of ignition.