Artikel 5

1. The present Convention shall be opened for signature in Brussels and shall remain open for signature in London at the Headquarters of the Inter-Governmental Maritime Consultative Organization (hereinafter referred to as “the Organization”) until 31 December 1972 and shall thereafter remain open for accession.
2. States Members of the United Nations or any of the Specialized Agencies or of the International Atomic Energy Agency or Parties to the Statute of the International Court of Justice may become Parties to the present Convention by:
(a) signature without reservation as to ratification, acceptance or approval;
(b) signature subject to ratification, acceptance or approval followed by ratification, acceptance or approval; or
(c) accession.
3. Ratification, acceptance, approval or accession shall be effected by the deposit of a formal instrument to that effect with the Secretary-General of the Organization.