46 CFR §42.11-5

1. (a)Normally, the owner, master, or agent of a vessel shall apply in writing, on a timely basis, to the American Bureau of Shipping for the assignment, survey, and certification of load lines. When nonconcurrent, a separate application shall be made for each function desired and submitted on a timely basis. The mailing address of the home office of American Bureau of Shipping is ABS Plaza, 16855 Northchase Drive, Houston, TX 77060.
2. (b)After the Commandant has approved a recognized classification society as a load line assigning and issuing authority for a vessel, as described in a written request of the shipowner, the owner shall apply in writing, on a timely basis, direct to the approved assigning and issuing authority for the assignment, survey, and certification of load lines. When nonconcurrent, a separate application shall be made to such authority for each function desired, and submitted on a timely basis.