(b) If recognition of a foreign country judgment is sought as an
original matter, the issue of recognition shall be raised by filing an
action on the judgment or a motion for summary judgment in lieu of
complaint seeking recognition of the foreign country judgment.
(c) If recognition of a foreign country judgment is sought in a
pending action, the issue of recognition may be raised by counterclaim,
cross-claim or affirmative defense.
(d) An action to recognize a foreign country judgment must be
commenced within the earlier of the time during which the foreign
country judgment is effective in the foreign country or twenty years
from the date that the foreign country judgment became effective in the
foreign country.