46 CFR §46.01-1

1. (a)The purpose of the regulations in this part is to set forth uniform minimum requirements applicable to passenger vessels required to have subdivision load lines. These requirements deal with the following:
   1. (1)Load line requirements applicable before a passenger vessel will be marked with and certificated as to subdivision load lines.
   2. (2)Assigning, marking, and recording of subdivision load lines.
   3. (3)Administration of subdivision load lines.
   4. (4)Application of requirements to passenger vessels.