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 vessel’s 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.