is a vessel for which, on or after the date of entry into
force of the present Protocol:
-
(a) the building or major conversion contract
is placed; or
-
(b) the building or major conversion contract
has been placed before the date of entry into force of the present
Protocol, and which is delivered three years or more after the date
of such entry into force; or
-
(c) in the absence of a building contract: