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Language certificates

Studies? New job? Personal challenge? Do you need a certificate to confirm your language skills in a foreign language? 

With our help, you will become “fluent” in your new life plans.

The INLL organises the Sproochentest, as well as the LAF – Lëtzebuergesch als Friemsprooch.

The INLL offers international language tests and examinations in cooperation with: the Goethe-Institut, the TestDaf Institut, Cambridge Assessment English, the British Council, Instituto Cervantes, France Education International, Università per Stranieri di Perugia, Universidade de Lisboa.

Overview of language certificates offered

There are many certification bodies that can attest language skills. We organise language tests for different European languages in cooperation with the relevant national institution concerned.


Goethe Zertifikat (Levels A2, B1, B2, C1)

Offered Levels A2, B1, B2, C1 

To the official website

Test Deutsch als Fremdsprache (TestDaF, Levels B2 + C1)

From 2023 onwards, digital version only

To the official website


Cambridge Assessment English (B1 Preliminary, C1 Advanced, C2 Proficiency)

Immigration and education
Improving employability

To the official website

International English Language Testing System (IELTS, Niveaux A1-C2)

Registration for English universities and immigration to English-speaking countries
2 types of tests: IELTS Academic and IELTS General Training

To the official website


Diplôme élémentaire de la langue française (DELF Niveaux A2, B1, B2)

Offered Levels DELF A2, DELF B1, DELF B2

To the official website

Diplôme approfondi de la langue française (DALF Niveau C1)

Offered Level DALF C1

To the official website

Test de connaissance du français (TCF, Niveaux A1-C2)

Offered Levels A1/A2/B1/B2/C1/C2

To the official website


Diploma della Lingua Italiana (CELI, Levels A1-C2)

To the official website


Diploma LAF – Lëtzebuergesch als Friemsprooch

Levels A2, B1, B2, C1

To the official website


The Sproochentest is the language test that allows you to obtain Luxembourg nationality. The required levels are A2 in speaking and B1 in listening.

To the official website


Diploma de Português Língua Estrangeira (ACESSO-DUPLE, Levels A1-C2)

To the official website


Diplomas de Español como lengua extranjera (DELE, Levels A1-C2)

To the official website