"The official number assigned to documented vessels, preceded of the abbreviation "NO." must be marked in block-type Arabic numerals at least three inches high on some clearly visible interior structural part of the hull. The number must be permanently affixed so that alteration, removal, or replacement would be obvious and cause some scarring or damage to the surrounding hull area."So that is what the Coast Guard requires. What did you (or the dealer) do to put the documentation numbers on your boat?1. How did you mark the hull? Everything on the inside of my hull is covered with liners or bulkheads and if it must be visiable, it cannot be in a locker (right)?