Code of Federal Regulations Title 46. Shipping § 46.42.13–35 Mark of assigning authority

(a) The mark of the assigning authority by whom the load lines are assigned may be indicated alongside the load line ring above the horizontal line which passes through the center of the ring, or above and below it. This mark shall consist of not more than four initials to identify the assigning authority's name, each measuring approximately 4 1/2 inches in height and 3 inches in width.