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CLSS Schedule Building Timeline

  1. UNO
  2. Registrar
  3. Faculty & Staff
  4. CLSS
  5. CLSS Schedule Building Timeline

  • CLSS Frequently Asked Questions
  • CLSS Schedule Building Timeline
  • CLSS Workflow Flowchart
  • CLSS Training
  • Course Schedule Building Guidelines
  • CLSS Introduction

Course Leaf Section Scheduler (CLSS) is our powerful new system and tool that allows users to view, adjust, and report on class scheduling information, and will serve as the primary tool for class scheduling at the University of Nebraska at Omaha.

Course Leaf Section Scheduler (CLSS) Login

CLSS Training Information

CLSS Training:

  • Please contact the Office of the University Registrar if you need training on using CLSS

Jump to: Spring 2026 -------- Summer 2026 -------- Fall 2026 -------- Spring 2027

Spring 2026 Schedule Building Timeline

Date

Action

April 1, 2025

Refine Mode/Plan Phase

  • Schedule data (rolled from Spring 2025) will be available in CLSS
  • Make all necessary changes in CLSS
  • Each change will now be validated and fed into PeopleSoft automatically

July 28, 2025

Proof Phase - Primetime Meeting Pattern Compliance Review

  • Deans Offices will be contacted regarding noncompliant Scheduling Units
  • Specific Classroom Requests should be submitted to the Registrar by this date through “Comments”

August 18, 2025

Refine Mode/Room Assignment Phase

  • No changes can be made in CLSS during this phase

September 29, 2025

Refine Mode/Publish Phase

  • Limited changes can be made
  • All other changes must be requested through the Registrar due to the impact on classroom assignments

October 6, 2025

Refine Mode/Present Phase

  • Schedule available online

Enrollment Dates:

Monday, October 20................................. Graduate Enrollment
Wednesday, October 22........................... Senior Enrollment
Friday, October 24.................................... Junior Enrollment
Tuesday, October 28................................ Sophomore Enrollment
Thursday, October 30.............................. Freshman Enrollment
Monday, November 3................................ Open Enrollment


Session Dates:

January 12 – May 9..................... Spring Semester

Summer 2026 Schedule Building Timeline

Date

Action

November 7, 2025

Refine Mode/Plan Phase

  • Schedule data (rolled from Summer 2026) will be available in CLSS
  • Make all necessary changes in CLSS
  • Each change will now be validated and fed into PeopleSoft automatically

December 8, 2025

Proof Phase - Primetime Meeting Pattern Compliance Review

  • Deans Offices will be contacted regarding noncompliant Scheduling Units
  • Specific Classroom Requests should be submitted to the Registrar by this date through “Comments”

January 5, 2026

Refine Mode/Room Assignment Phase

  • No changes can be made in CLSS during this phase

January 26, 2026

Refine Mode/Publish Phase

  • Limited changes can be made
  • All other changes must be requested through the Registrar due to the impact on classroom assignments

February 2, 2026

Refine Mode/Present Phase

  • Schedule available online

Enrollment Dates:

Monday, February 23................................. Graduate Enrollment
Tuesday, February 24........................... Senior Enrollment
Wednesday, February 25.................................... Junior Enrollment
Thursday, February 26................................ Sophomore Enrollment
Friday, February 27.............................. Freshman Enrollment
Monday, March 2................................ Open Enrollment


Session Dates:

May 11 - 22 ............................ Intersession
May 26 - June 26 ..................... Summer Session (1st 5 Weeks)
June 29 - July 31 ..................... Summer Session (2nd 5 Weeks)
May 26 - July 31 ...................... Summer Session (Full Summer Session)

Fall 2026 Schedule Building Timeline

Date

Action

November 7, 2025

Refine Mode/Plan Phase

  • Schedule data (rolled from Fall 2025) will be available in CLSS
  • Make all necessary changes in CLSS
  • Each change will now be validated and fed into PeopleSoft automatically

December 8, 2025

Proof Phase - Primetime Meeting Pattern Compliance Review

  • Deans Offices will be contacted regarding noncompliant Scheduling Units
  • Specific Classroom Requests should be submitted to the Registrar by this date through “Comments”

January 26, 2026

Refine Mode/Room Assignment Phase

  • No changes can be made in CLSS during this phase

February 16, 2026

Refine Mode/Publish Phase

  • Limited changes can be made
  • All other changes must be requested through the Registrar due to the impact on classroom assignments

February 23, 2026

Refine Mode/Present Phase

  • Schedule available online

Enrollment Dates:

Monday, March 23................................. Graduate Enrollment
Wednesday, March 25........................... Senior Enrollment
Friday, March 27.................................... Junior Enrollment
Tuesday, March 31................................ Sophomore Enrollment
Thursday, April 2.............................. Freshman Enrollment
Monday, April 6................................ Open Enrollment


Session Dates:

August 3 – 14 ...................................... Intersession
August 24 – December 18 ..................... Fall Session

Spring 2027 Schedule Building Timeline

Date

Action

April 6, 2026

Refine Mode/Plan Phase

  • Schedule data (rolled from Spring 2026) will be available in CLSS
  • Make all necessary changes in CLSS
  • Each change will now be validated and fed into PeopleSoft automatically

July 27, 2026

Proof Phase - Primetime Meeting Pattern Compliance Review

  • Deans Offices will be contacted regarding noncompliant Scheduling Units
  • Specific Classroom Requests should be submitted to the Registrar by this date through “Comments”

August 17, 2026

Refine Mode/Room Assignment Phase

  • No changes can be made in CLSS during this phase

September 21, 2026

Refine Mode/Publish Phase

  • Limited changes can be made
  • All other changes must be requested through the Registrar due to the impact on classroom assignments

September 28, 2026

Refine Mode/Present Phase

  • Schedule available online

Enrollment Dates:

Monday, October 19................................. Graduate Enrollment
Wednesday, October 21........................... Senior Enrollment
Friday, October 23.................................... Junior Enrollment
Tuesday, October 27................................ Sophomore Enrollment
Thursday, October 29.............................. Freshman Enrollment
Monday, November 2................................ Open Enrollment


Session Dates:

January 2 – 10 ............................ Intersession
January 11 – May 7 ..................... Spring Semester

CLSS

  • CLSS Frequently Asked Questions
  • CLSS Schedule Building Timeline
  • CLSS Workflow Flowchart
  • CLSS Training
  • Course Schedule Building Guidelines
  • CLSS Introduction

Additional Resources

  • Course Leaf Section Scheduler (CLSS) Login

Contact Us

Office of the University Registrar
105 EAB
6001 Dodge Street
Omaha, NE 68182

Phone:  402.554.2314
Fax: 402.554.2011
Email: unoregistrar@unomaha.edu

Facebook: UNO Office of the University Registrar
X (Formerly Twitter): @UNO_Registrar

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