Hull Construction Regulations (C.R.C., c. 1431)

9 Every ship shall be subdivided into compartments by bulkheads that are watertight up to the bulkhead deck, the maximum length of which compartments shall be calculated in accordance with such of the provisions of Schedule I as apply to that ship; every other portion of the internal structure that affects the efficiency of the subdivision of the ship shall be watertight, and shall be of a design that will maintain the integrity of the subdivision.