Declaration made on April 18, 1980:
"The present Convention is approved on condition of the two limitations set forth in article I (3) of the Convention."
Since the declaration had been made after accession, it was communicated by the Secretary-General to all States concerned on June 10, 1980. None of the Contracting Parties having expressed an objection within a period of 90 days from the date of the above-mentioned communication, the declaration was deemed to have been accepted.