The CERN Accelerator School typically offers four courses per year.

The typical duration of the international residential  courses is 11 – 13 nights, whereas the local basic course is Monday to Friday of one week.

• The general introductory course will take place every year in September.
• The general advanced course is foreseen every second year.
• Topical courses take place in May/June and November, unless there is a general advanced course in one slot.
• The basic local course is now repeated every 12 month. Originally this course was open only for CERN participants, but now a limited number of places is also available for participants from outside CERN.

The course pattern is typically planned three years in advance. The actual planning is always displayed on the homepage of the school.