| Subject | English | Spanish |
| commer., polit. | Agreement on Amendment of and Accession to the Central European Free Trade Agreement | Acuerdo de enmienda y relativo a la adhesión al Acuerdo de Libre Comercio de Europa Central |
| commer., polit. | Agreement on Amendment of and Accession to the Central European Free Trade Agreement | ALCEC 2006 |
| patents. | amendment to the claims | modificación de las reivindicaciones |
| law | amendment to the Constitution | revisión constitucional |
| law | amendment to the constitution | reforma enmienda constitucional |
| law | amendment to the constitution | modificación de la constitución |
| UN | Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer | Enmienda del Protocolo de Montreal relativo a las sustancias que agotan la capa de ozono |
| law | amendment to the whole | enmienda a la totalidad |
| gen. | Commission opinion of 21 October 1990 on the proposal for amendment of the Treaty establishing the European Economic Community with a view to Political Union | Dictamen de la Comisión de 21 de octubre de 1990 relativo al proyecto de revisión del Tratado constitutivo la Comunidad Económica Europea sobre la Unión Política |
| gen. | Convention for the Partial Revision of the Conventions Adopted by the General Conference of the International Labour Organisation at Its First Twenty-eight Sessions for the Purpose of Making Provision for the Future Discharge of Certain Chancery Functions Entrusted by the Said Conventions to the Secretary-General of the League of Nations and Introducing therein Certain Further Amendments Consequential upon the Dissolution of the League of Nations and the Amendment of the Constitution of the International Labour Organisation | Convenio sobre la revisión de los artículos finales, 1946 |
| gen. | Convention for the Partial Revision of the Conventions Adopted by the General Conference of the International Labour Organisation at Its First Twenty-eight Sessions for the Purpose of Making Provision for the Future Discharge of Certain Chancery Functions Entrusted by the Said Conventions to the Secretary-General of the League of Nations and Introducing therein Certain Further Amendments Consequential upon the Dissolution of the League of Nations and the Amendment of the Constitution of the International Labour Organisation | Convenio por el que se revisan parcialmente los Convenios adoptados por la Conferencia General de la OIT, en sus veintiocho primeras reuniones |
| fin., polit. | Protocol of Amendment to the Convention, signed in Brussels, on 15th December 1950, on Nomenclature for the Classification of Goods in Customs Tariffs | Protocolo de rectificación, firmado en Bruselas a 1 de julio de 1955, del Convenio sobre la Nomenclatura para la clasificación de las mercancías en los aranceles aduaneros |
| gen. | Protocol of Amendment to the European Convention for the Protection of Animals Kept for Farming Purposes | Protocolo de enmienda del Convenio europeo sobre protección de los animales en las ganaderías |
| law | Protocol of Amendment to the European Convention for the Protection of Vertebrate Animals used for Experimental and Other Scientific Purposes | Protocolo de Enmienda al Convenio Europeo para la protección de los animales vertebrados utilizados para fines experimentales u otros fines científicos |
| fin., polit. | Protocol of amendment to the International Convention on the simplification and harmonization of Customs procedures | Protocolo de Enmienda del Convenio Internacional para la Simplificación y Armonización de los Regímenes Aduaneros |
| transp., avia. | Protocol relating to an amendment to Article 56 of the Convention on International Civil Aviation | Protocolo relativo a una enmienda al artículo 56 del Convenio sobre Aviación Civil Internacional |
| transp., avia. | Protocol relating to an amendment to Article 50a of the Convention on International Civil Aviation | Protocolo relativo a la enmienda al artículo 50 a del Convenio sobre Aviación Civil Internacional |
| transp., avia. | Protocol relating to an amendment to Article 50a of the Convention on International Civil Aviation, signed at Montreal on 26 October 1990 | Protocolo relativo a la enmienda al artículo 50 a del Convenio sobre Aviación Civil Internacional |
| transp., avia., UN | Protocol relating to an amendment to the Convention on International Civil Aviation | Protocolo relativo a una enmienda al Convenio sobre Aviación Civil Internacional |
| gen. | to put an amendment to the vote | someter a votación una enmienda |