Said documents require sole authentication or Apostille granted by the authorities of the relevant country. This process is valid for the following nations: Andorra, Antigua and Barbuda, Argentina, Armenia, Australia, Bahamas, Barbados, Belize, Belarus, Bosnia-Herzegovina, Botswana, Brunei-Darussalam, Bulgaria, Cyprus, Colombia, Croatia, El Salvador, Slovenia, United States of America, Estonia, Russian Federation, Fiji, Hong Kong, Hungary, Marshall Island, Israel, Japan, Kazakhstan, Lesotho, Latvia, Liberia, Lithuania, Macau, Republic of Macedonia, Malawi, Malta, Republic of Mauritius, Mexico, Namibia, New Zealand, Niue, Panama, Puerto Rico, Czech Republic, Romania, Samoa, Federation of Saint Kitts and Nevis, San Marino, Republic of Seychelles, Switzerland, South Africa, Suriname, Swaziland, Tonga, Republic of Trinidad and Tobago, Turkey, Venezuela, Federal Republic of Yugoslavia, Netherlands Antilles, Jersey, Guernsey, Isle of Man, Bermuda, British Antarctic Territory, Cayman Islands, Falkland Islands, Gibraltar, Montserrat, Saint Helen, Turks and Caicos Islands, Virgin Islands.
- Ministry of Education of the country of origin for degrees and certificates of studies and the corresponding Ministry for birth and nationality certificates.
- Ministry of Foreign Affairs of the country where these documents were issued.
- Diplomatic or consular representation of Spain in this country.