A Royal Commission on unseaworthy ships was established in 1872 , and in 1876 the United Kingdom Merchant Shipping Act made the load line mark compulsory .
The positioning of the mark was not fixed by law until 1894 .
A Royal Commission on unseaworthy ships was established in 1872 , and in 1876 the United Kingdom Merchant Shipping Act made the load line mark compulsory , although the positioning of the mark was not fixed by law until 1894 .