Starting in 3rd grade, all ISA students are evaluated on their competence and mastery of the Spanish or French language. Spanish students are awarded Diplomas of Spanish as a Foreign Language (DELE) and French students receive Diplomas of French as a Foreign Language (DELF).
Widely used in schools and summer camps throughout Europe, ISA utilizes the Common European Framework of Reference for Languages: Learning, Teaching, Assessment (CEFR), to measure language proficiency. This rating system divides learners into levels from A1 (basic user) to C2 (advanced academic fluency) and allows instructors to assess speaking, reading, writing, and listening skills of each ISA student. In Europe, students now place their CEFR rating on resumes to differentiate their fluency.