These were updated with the passage of the Merchant Shipping Act 1894 and were modified subsequently, but by 1912 they had a fatal flaw – they had been intended to regulate vessels of up to 10,000 tons, a limit that had long since been exceeded by shipbuilders.
這些更新隨著《1894年商船法案（英语：Merchant Shipping Act）》的通過而進行了修改，但到了1912年就出現了致命的缺陷——它們目的是管制容積總噸達10,000噸以上的船隻，這一噸位限制早已被造船商遠遠超越。