(a) Limitation
Section 501 of title 46, United States Code, is amended—
(1)
by redesignating subsection (d) as subsection (e); and
(2)
by inserting after subsection (c) the following new subsection:
(b) Applicability
The amendments made by subsection (a) shall apply with respect to vessels operating on or after the date of the enactment of this Act, regardless of whether a waiver governing such operation has been issued under section 501 of title 46, United States Code, prior to such date of enactment.