Optional Protocol to the Vienna Convention on Diplomatic Relations concerning Acquisition of Nationality

Done at Vienna on 18 April 1961

ENTRY INTO FORCE: 24 April 1964, in accordance with article VI.

REGISTRATION: 24 June 1964, No. 7311.

TEXT: United Nations, Treaty Series, vol. 500, p. 223.

STATUS: Signatories: 19. Parties: 48.

Note: See "Note:" in chapter III.3.

Participant

Signature

Ratification, accession (a), succession (d)

Argentina 25 Oct 1961 10 Oct 1963

Belgium 2 May 1968 a

Bosnia and Herzegovina 12 Jan 1994 d

Botswana 11 Apr 1969 a

Cambodia 31 Aug 1965 a

Central African Republic 28 Mar 1962 19 Mar 1973

China

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

Germany2, 3 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 l Jul 1965 a

Lao People's Democratic Republic 3 Dec 1962 a

Lebanon 18 Apr 1961

Libyan Arab
Jamahiriya 7 Jun 1977 a

Madagascar 31 Jul 1963 a

Malawi 29 Apr 1980 a

Malaysia 9 Nov 1965 a

Morocco 23 Feb 1977 a

Myanmar 7 Mar 1980 a

Nepal 28 Sep 1965 a

Netherlands4 7 Sep 1984 a

Nicaragua 9 Jan 1990 a

Niger 28 Mar 1966 a

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

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

the former Yugoslav Republic of Macedonia 18 Aug 1993 d

Tunisia 24 Jan 1968 a

United Republic of Tanzania 27 Feb 1962 5 Nov 1962

Yugoslavia 18 Apr 1961 1 Apr 1963

Declarations and Reservations
(Unless otherwise indicated, the declarations and reservations were made
upon ratification, accession or succession. For objections thereto, see hereinafter.)

netherlands

Declaration:

"The Kingdom of the Netherlands interprets the words "not, solely by the operation of the law of the receiving State" in article II of the Optional Protocol concerning Acquisition of Nationality as meaning that acquisition of nationality by descent is not regarded as acquisition of nationality solely by the operation of this law."

Objections
(Unless otherwise indicated, the objections were made
upon ratification, accession or succession.)

thailand

[See chapter III.3.]

NOTES:

 Signed on behalf of the Republic of China on 18 April 1961. See notes concerning signatures, ratifications, accessions, etc., on behalf of China (note in chapter I.1 and note in chapter III.3).

2 See note in chapter I.2.

3 See note in chapter III.3 and note 2 above.

4 For the Kingdom in Europe and the Netherlands Antilles. See also note in chapter I.1.