To ensure that draught does not exceed that used in determining the degree of subdivision, a passenger ship is marked with a subdivision load line (commonly called a convention line) alongside her other load lines.
Ukuqinisekisa okokuba ubungakanani bokutshona kwenqanawa emanzini abogqithi eloqondo elimisiweyo lolwahlulo, inqanawa yabakhweli iphawulwe ngomgca wokulayisha wolwahlulo (eyaziwa ngokuba ngumgca wemvumelwano) ecaleni kweminye imigca yayo.