4. Any
protocol, except as otherwise provided in such
protocol, shall
enter into force for a
Contracting Party that
ratifies,
accepts or
approves that
protocol or
accedes thereto after its
entry into force pursuant to paragraph 2 above, on the ninetieth
day after the
date on which that
Contracting Party deposits its
instrument of ratification,
acceptance,
approval or
accession, or on the
date on which this
Convention enters into
force for that
Contracting Party, whichever shall be the later.
5. For the
purposes of paragraphs 1 and 2 above, any
instrument deposited by a
regional economic integration organization shall not be counted as additional to those
deposited by
member States of such
organization.