View source for Secondary schools (Austria)

Lower secondary level, ISCED 2: In Austria, this ranges from the fifth to the eighth grade and can be completed in special schools, lower grades of general secondary schools, co-operative middle schools, and new middle schools.

Upper secondary level, ISCED 3 and 4: After the lower secondary level, in Austria, there is usually one more year of compulsory schooling, then further schooling is voluntary. The upper secondary level begins with the ninth grade and there are many options for further education. In Austria, this level includes polytechnic schools, vocational schools and apprenticeships – as a dual education system, intermediate vocational schools, higher vocational schools, technical schools and upper levels of general secondary schools.

=== Important Links & References ===
[https://oesterreich.com/de/bildung/aufbau-des-bildungssystems-in-%C3%B6sterreich Sekundarstufe]