This chapter applies to the following:
(1) a vessel not measured under chapter
143 of this title if
(A) the vessel is to be documented under chapter
121 of this title; or
(B) the application of a law of the United States to the vessel depends on the vessels tonnage.
(2) a vessel measured under chapter
143 of this title if the owner requests that the vessel also be measured under this chapter as provided in section
14305 of this title.