((a)) The Secretary shall measure a vessel to which this chapter applies in the way provided by this chapter and the Convention.

((b)) A vessel measured under this chapter may not be required to be measured under another law.

((c)) Unless otherwise provided by law, the measurement of a vessel under this chapter applies to a law of the United States whose applicability depends on a vessel’s tonnage, if that law—

((1)) becomes effective after ; or

((2)) is in effect before , is not enumerated in , and is identified by the Secretary by regulation as a law to which this chapter applies.