These regulations apply to German and foreign persons, regardless of the place of study in Germany and abroad. Attendance at the educational institution must be at least 15 hours per week for at least 12 weeks. Students who are currently attending a state or private university. Persons attending a primary, lower secondary or upper secondary school (Hauptschule, Realschule, Gymnasium, Gesamtschule or private recognized institution) in the current school year. Special schools and evening schools are also included. Persons who are in vocational training and attend a vocational (technical) school. Persons attending a language course. The above-mentioned hours regulation also applies here. Students on leave of absence with a certificate of enrollment. Students of a preparatory college with certificate of enrollment. Doctoral students with certificate of enrollment. Persons in the legal clerkship and teacher training (as part of a two-phase academic training).   Not ISIC eligible: Participants in an offer that does not lead to vocational training, e.g: Guest auditor, participants in VHS courses, FsJ/FöJ, persons in traineeships or internships (provided they are not students) and au pairs au pairs, are unfortunately not eligible for ISIC. If you do not meet the requirements for the ISIC application, then the IYTC might be an alternative. There is no age restriction for the ISIC application.