Hull Construction Regulations

192 (1) Pipes that penetrate ‘A’ Class divisions or ‘B’ Class divisions and pipes through which combustible liquids flow shall be made of steel or an equivalent material.

(2) Pipes that are used for overboard discharges or sanitary discharges and outlets that are close to the waterline shall be made of materials that are not readily rendered ineffective by heat and that will not give rise to the danger of flooding upon failure of the pipe or outlet in the event of fire.