| Entry into force: | 1 April 1953, in accordance with article 14. |
| Registration: | 1 April 1953, No. 2138. |
| Status: | Signatories: 7 ,Parties: 101. |
| Text: | United Nations, Treaty Series, vol. 163, p. 3; and vol. 328, p. 319 (Modified International Customs Declaration form annexed to the Convention, which entered into force on 24 May 1959). |
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| Participant | Signature | Definitive signature (s), Ratification, Accession (a) |
| Albania | 22 Apr 2004 a | |
| Austria | 8 Jun 1956 a | |
| Belgium | 10 Jan 1952 | 22 Jul 1953 |
| France | 10 Jan 1952 | 1 Apr 1953 |
| Italy | 10 Jan 1952 | 22 Jun 1955 |
| Luxembourg | 10 Jan 1952 | 26 Jan 1954 |
| Netherlands2 | 25 May 1952 s | |
| Norway | 10 Jan 1952 | 28 Oct 1952 |
| Portugal | 24 Sep 1956 a | |
| Sweden | 10 Jan 1952 | |
| Switzerland1 | 10 Jan 1952 | 5 Jun 1957 |
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1. Including Liechtenstein. On 16 June 1975, the Government of Switzerland declared that the provisions of the Convention apply to the Principality of Liechtenstein so long as it is linked to Switzerland by a customs union treaty.
2. The Government of the Netherlands, on behalf of which the Convention had been signed subject to ratification, gave notice of the withdrawal of this reservation in a communication received by the Secretary-General on 25 May 1952.