PRIVILEGES AND IMMUNITIES, DIPLOMATIC AND CONSULAR RELATIONS, ETC
Optional Protocol to the Vienna Convention on Diplomatic Relations, concerning Acquisition of Nationality
- Reference
- III-4
- Adopted
- Vienna, 18 April 1961
- Entry into force
- 24 April 1964, in accordance with article VI.
- Registration
- 24 June 1964, No. 7311
- Signatories
- 18
- Parties
- 51
- Depositary record
- United Nations Treaty Collection
- 18 signed
- 51 ratified or acceded
- 54 participants listed
Who signed, and when
| Country | Signature | Ratification, acceptance, approval or accession |
|---|---|---|
| Argentina | 25 Oct 1961 | 10 Oct 1963 |
| Belgium | - | 2 May 1968 a |
| Bosnia and Herzegovina | - | 12 Jan 1994 d |
| Bosnia and Herzegovina 2 | - | 12 Jan 1994 d |
| Botswana | - | 11 Apr 1969 a |
| Cambodia | - | 31 Aug 1965 a |
| Central African Republic | 28 Mar 1962 | 19 Mar 1973 |
| Democratic Republic of the Congo | - | 15 Jul 1976 a |
| Denmark | 18 Apr 1961 | 2 Oct 1968 |
| Dominican Republic | 30 Mar 1962 | 14 Jan 1964 |
| Egypt | - | 9 Jun 1964 a |
| Estonia | - | 21 Oct 1991 a |
| Finland | 20 Oct 1961 | 9 Dec 1969 |
| Gabon | - | 2 Apr 1964 a |
| Germany | 28 Mar 1962 | 11 Nov 1964 |
| Germany 3 , 4 | 28 Mar 1962 | 11 Nov 1964 |
| Ghana | 18 Apr 1961 | - |
| Guinea | - | 10 Jan 1968 a |
| Iceland | - | 18 May 1971 a |
| India | - | 15 Oct 1965 a |
| Indonesia | - | 4 Jun 1982 a |
| Iran (Islamic Republic of) | 27 May 1961 | 3 Feb 1965 |
| Iraq | 20 Feb 1962 | 15 Oct 1963 |
| Italy | 13 Mar 1962 | 25 Jun 1969 |
| Kenya | - | 1 Jul 1965 a |
| Lao People's Democratic Republic | - | 3 Dec 1962 a |
| Lebanon | 18 Apr 1961 | - |
| Liberia | - | 16 Sep 2005 a |
| Libya | - | 7 Jun 1977 a |
| Madagascar | - | 31 Jul 1963 a |
| Malawi | - | 29 Apr 1980 a |
| Malaysia | - | 9 Nov 1965 a |
| Montenegro | - | 23 Oct 2006 d |
| Montenegro 5 | - | 23 Oct 2006 d |
| Morocco | - | 23 Feb 1977 a |
| Myanmar | - | 7 Mar 1980 a |
| Nepal | - | 28 Sep 1965 a |
| Netherlands (Kingdom of the) | - | 7 Sep 1984 a |
| Netherlands (Kingdom of the) 6 | - | 7 Sep 1984 a |
| New Zealand | - | 5 Sep 2003 a |
| New Zealand 7 | - | 5 Sep 2003 a |
| Nicaragua | - | 9 Jan 1990 a |
| Niger | - | 28 Mar 1966 a |
| North Macedonia | - | 18 Aug 1993 d |
| North Macedonia 2 | - | 18 Aug 1993 d |
| Norway | 18 Apr 1961 | 24 Oct 1967 |
| Oman | - | 31 May 1974 a |
| Panama | - | 4 Dec 1963 a |
| Paraguay | - | 23 Dec 1969 a |
| Philippines | 20 Oct 1961 | 15 Nov 1965 |
| Republic of Korea | 30 Mar 1962 | 7 Mar 1977 |
| Senegal | 18 Apr 1961 | - |
| Serbia | - | 12 Mar 2001 d |
| Serbia 2 | - | 12 Mar 2001 d |
| Sri Lanka | - | 31 Jul 1978 a |
| Suriname | - | 28 Oct 1992 a |
| Sweden | 18 Apr 1961 | 21 Mar 1967 |
| Switzerland | - | 12 Jun 1992 a |
| Thailand | 30 Oct 1961 | 23 Jan 1985 |
| Tunisia | - | 24 Jan 1968 a |
| United Republic of Tanzania | 27 Feb 1962 | 5 Nov 1962 |
Participants that are UN member states link to their profile. The Holy See, the European Union, the Cook Islands and Niue appear in these tables and are not member states, so they are named without a link rather than attached to the nearest match. The third column carries the depositary’s own annotation. Accession, succession and acceptance are legally distinct from ratification and are shown as the record states them rather than flattened into one word.
Counts verified against the depositary’s own totals for this treaty before publication. The United Nations Treaty Collection is the authority; this page is a readable copy and may lag it.