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| English | Spanish |
| Customs Committees EEC-Countries of the European Free Trade Association Austria, Finland, Iceland, Norway, Sweden, Switzerland | Comités aduaneros CEE-países de la Asociación Europea de Libre Comercio Austria, Finlandia, Islandia, Noruega, Suecia, Suiza |
| Eurocustoms Association | Asociación "Euroaduana" |
| International Fiscal Association | Asociación Fiscal Internacional |