Academic Calendar

For other academic calendars, refer to the Academic Calendar section of the COS webpage.   

Fall Semester 2023

August 14, 2023 - December 15, 2023

Sept 6, 2022 WEB Admission Applications Begin for Summer/Fall 2023 at www.cos.edu
Starting March 20 Fall WEB Registration for Priority Registration/Continuing Students
Apr 20 - 21 Fall Registration for Students who have completed STEPS
May 1 Fall Registration for Students who have completed ALL Matriculation
May 2 Fall Registration for Early College High Schools (VTEC/UPHS)
May 3 Fall WEB OPEN Registration for Eligible Students
May 3 Registration for Students on Probation
May 8 Summer/Fall Registration for Concurrently Enrolled High School Students
May 15 Summer Registration for Students who have completed 100 or more units at COS
July 1 Payment Deadline: Students must pay fall fees by July 1st or 2 weeks after registration (whichever is later) to avoid the possibility of being dropped from classes
July 24 Fall Registration for Students who have completed 100 or more units at COS
Aug 11 FLEX Day; Registration is available at www.cos.edu
Aug 14 Fall Semester Begins
Aug 14 - 20 Fall Late WEB Registration With Instructor Add Codes
Aug 25 First Day "No Show" Rosters are due for Full Term Classes
Aug 27 Last Day to Drop a Class Without a "W" and be Eligible for a Refund
Sept 4 Labor Day Holiday (no classes)
Sept 8 Permanent Rosters are due for Full Term Classes
Oct 19 Last Day to File for Associate Degree for Fall 2023
Oct 20 Fall Final Drop Date - Drop Classes on the WEB; this drop date does not apply to short-term classes as each short-term class has its own drop date
Nov 10 Veterans' Day Holiday (no classes)
Nov 22 - 24 Thanksgiving Holiday (no classes and offices closed)
Dec 11 - 15 Fall Final Exams
Dec 15 Fall Semester Ends
Dec 15 Last Day to Make Up Incomplete "I" Grades for Fall 2022 semester
Dec 16 - Jan 15 Break Between Semesters

Spring Semester 2024

January 16, 2024 - May 22, 2024

Sept 5, 2023 WEB Admission Applications Begin for Spring 2024 at www.cos.edu
Starting Oct. 30 Spring WEB Registration for Priority Registration/Continuing Students
Nov 27 Spring Registration for students who have completed ALL matriculation
Nov 28 Spring Registration for Early College High Schools (VTEC/UPHS)
Nov. 29 Spring WEB OPEN Registration for Eligible Students
Nov. 29 Registration for Students on Probation
Dec 4 Spring WEB Registration for Concurrently Enrolled High School Students
Jan 3 Spring Registration for Students who have completed 100 or more units at COS
Jan 12 FLEX Day; Registration is available at www.cos.edu
Jan 15 Martin Luther King Jr. Holiday; Registration is available at www.cos.edu
Jan 16 Spring Semester Begins
Jan 16 - 22 Spring Late WEB Registration With Instructor Add Codes
Jan 26 First Day "No Show" Rosters are due for Full Term Classes
Jan 29 Last Day to Drop a Class Without a "W" and Eligible for a Refund
Feb 9 Permanent Rosters are due for Full Term Classes
Feb 16 Lincoln Day Holiday (no classes)
Feb 19 Presidents' Day Holiday (no classes)
Feb 22 Last Day to File for Associate Degree for Spring 2024
Mar 22 Spring Final Drop Date - Drop Classes on the WEB; this drop date does not apply to short-term classes as each short-term class has its own drop date
March 25 - 29 Spring Break (no classes); Offices open March 25 - 27; closed March 28 - 29
May 16 - 22 Spring Final Exams
May 22 Spring Semester Ends; Last Day to Make Up Incomplete “I” Grades for Spring 2023 Semester
May 23 Commencement Ceremony