In the Scottish secondary education system, the Certificate of Sixth Year Studies (CSYS) was the highest level of qualification available to pupils from 1968 until circa 2000.
[1] Overseen by the Scottish Examination Board (SEB), it was taken by students in their sixth year (final year) of secondary education (ages 16–18) and was available for a range of different subjects.
Examinations were administered by the SEB (and latterly by its successor, the Scottish Qualifications Authority, which absorbed and replaced it eventually).
Unlike the Standard and Higher Grade examinations, it was not a part of the Scottish Certificate of Education.
The CSYS followed on from Higher Grade examinations and was considered broadly equivalent to the English A-Level qualification.