Course Leaf Section Scheduler (CLSS)
Course Leaf Section Scheduler (CLSS) is Northwestern’s primary academic scheduling tool. CLSS updates SES through the first week of each academic term. This gives class schedulers control of their schedules from initial planning through the end of student registration.
Useful CLSS tools
- To gain access to CLSS, please submit the SES student records security form, checking the “CLSS (class planning)” box under “Related Systems.”
- Register for upcoming CLSS training.
- CLSS Users guide
- CLSS Rules and workflow
- CLSS How to videos and documents
CLSS/CAT scheduling important dates
Spring 2020
- Tuesday, January 14 – Spring schedules due to Office of the Registrar. Departments must click validate in CLSS, resolve any errors, and start workflow to submit their schedules.
- Tuesday, January 28 – Final refinements due before room assignment. Room Assignment Phase begins at end of day and access to CLSS is cut off for all.
- Monday, February 3 – Room Assignments finalized.
- Tuesday, February 4 – Departmental access to CLSS is restored.
- Monday, February 10 – Schedule Live
- Monday, February 17 – Pre-registration
- Monday, February 24 – Regular Registration
- Monday, April 6 – Final day to make changes to schedules through CLSS for Spring.
Summer 2020
- Thursday, December 12 - Summer schedules due to Office of the Registrar. Departments must click validate in CLSS, resolve any errors, and start workflow to submit their schedules.
- Monday, January 13 - Summer Session website goes live with 2020 courses.
- Monday, April 6 - CAESAR goes live with Summer Session 2020 classes.
- Monday, April 13 - Regular Registration
- Friday, June 26 - Final day to make changes to schedules through CLSS for Summer.
Fall 2020
- Monday, March 30 – Weinberg Department schedules are due for Academic Year 2020-2021.
- Tuesday, April 7 – Fall schedules due to Office of the Registrar. Departments must click validate in CLSS, resolve any errors, and start workflow to submit their schedules.
- Tuesday, April 21 – Final refinements due before room assignment. Room Assignment Phase begins at end of day and access to CLSS is cut off for all.
- Friday, April 24 – Room Assignments finalized.
- Monday, April 27 – Departmental access to CLSS is restored.
- Monday, May 4 – Schedule Live
- Monday, May 11 – Pre-registration
- Monday, May 18 – Regular Registration
- Monday, September 7 - Continuing student registration ends
- Thursday, September 17 - New student registration begins
- Monday, September 28 – Final day to make changes to schedules through CLSS for Fall.
Winter 2021
- Wednesday, September 30– Winter schedules due to Office of the Registrar. Departments must click validate in CLSS, resolve any errors, and start workflow to submit their schedules.
- Tuesday, October 13 – Final refinements due before room assignment. Room Assignment Phase begins at end of day and access to CLSS is cut off for all.
- Monday, October 19 – Room Assignments finalized.
- Monday, October 19 – Departmental access to CLSS is restored.
- Monday, November 2 – Schedule Live
- Monday, November 9 – Pre-registration
- Monday, November 16 – Regular Registration
- Friday, January 8 – Final day to make changes to schedules through CLSS for Winter.
- Tuesday, January 12 – Spring schedules due to Office of the Registrar. Departments must click validate in CLSS, resolve any errors, and start workflow to submit their schedules.
- Tuesday, January 26 – Final refinements due before room assignment. Room Assignment Phase begins at end of day and access to CLSS is cut off for all.
- Monday, February 1 – Room Assignments finalized.
- Tuesday, February 1 – Departmental access to CLSS is restored.
- Monday, February 8 – Schedule Live
- Monday, February 15 – Pre-registration
- Monday, February 22 – Regular Registration
- Monday, April 5 – Final day to make changes to schedules through CLSS for Spring.