La Casa de las Lenguas is an official examination centre authorised for performing, among others, the following tests:
- Erasmus Language Tests: La Casa de las Lenguas is in charge of creating and organizing the language tests that are part of the selection process of candidates for ERASMUS mobilities.
- IELTS English Language Tests: The University of Oviedo is a partner centre for the IELTS (International English Language Testing System) English language tests, jointly organized by the British Council and the University of Cambridge.
- DELF and DALF French Language Diplomas: The University of Oviedo is an official examination centre for obtaining DELF and DALF French language diplomas, run by the Alliance Française.
- PLIDA Italian Certificate: The University of Oviedo is an official examination centre for obtaining PLIDA Italian language certificate, run by the Dante Alighieri.
- CAPLE Portuguese Certificate: The University of Oviedo is an official examination centre for the official Portuguese exams CAPLE , organized by the Centro de Availação de Portugues Lingua Estrangeira of the University of Lisbon.
- DELE Spanish Certificate: The University of Oviedo is an official examination centre for the Diploma of Spanish as a Foreign Language (DELE), organized by the Cervantes Institute and the Spanish Ministry of Education and Culture.
- TestDaF German Exams: The University of Oviedo is an official examination centre for the TestDaF, an examination for those who wish to study in German Universities or simply need a widely-recognized certificate of their proficiency in the German language.