For other academic calendars, refer to the Academic Calendar section of the COS webpage.
Fall Semester 2026
August 10, 2026 - December 15, 2026
Academic Calendar
| Date |
Event |
| Oct. 6, 2025 |
WEB Admission Applications Begin for Summer/Fall 2026 at www.cos.edu |
| Starting March 16 |
Fall WEB Registration for Priority Registration/Continuing Students |
| April 23 - 24 |
Fall Registration for Students who have completed STEPS |
| April 27 |
Fall Registration for Students who have completed ALL Matriculation |
| April 28 |
Fall Registration for Early College High Schools (VTEC/UPHS) |
| April 29 |
Fall WEB OPEN Registration for Eligible Students |
| April 29 |
Registration for Students on Notice |
| May 4 |
Summer/Fall Registration for Concurrently Enrolled High School Students |
| May 11 |
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 20 |
Fall Registration for Students who have completed 100 or more units at COS |
| Aug. 7 |
FLEX Day; Registration is available at www.cos.edu |
| Aug. 10 |
Fall Semester Begins |
| Aug. 10 - 16 |
Fall Late WEB Registration With Instructor Add Codes |
| Aug. 23 |
Last Day to Drop a Class Without a "W" and be Eligible for a Refund |
| Sept. 7 |
Labor Day Holiday (no classes) |
| Oct. 15 |
Last Day to File for Associate Degree for Fall 2026 |
| Oct. 16 |
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. 11 |
Veterans' Day Holiday (no classes) |
| Nov. 23 - 27 |
Thanksgiving Holiday (no classes and offices closed Nov. 25 - 27) |
| Dec. 9 - 15 |
Fall Final Exams |
| Dec. 15 |
Fall Semester Ends |
| Dec. 15 |
Last Day to Make Up Incomplete "I" Grades for Fall 2025 semester |
| Dec 16 - Jan 18 |
Break Between Semesters |
Spring Semester 2027
January 19, 2027 - May 26, 2027
Academic Calendar
| Date |
Event |
| Sept. 8, 2026 |
WEB Admission Applications Begin for Spring 2027 at www.cos.edu |
| Starting Oct. 26 |
Spring WEB Registration for Priority Registration/Continuing Students |
| Nov. 16 |
Spring Registration for students who have completed ALL matriculation |
| Nov. 17 |
Spring Registration for Early College High Schools (VTEC/UPHS) |
| Nov. 18 |
Spring WEB OPEN Registration for Eligible Students |
| Nov. 18 |
Registration for Students on Notice |
| Nov. 30 |
Spring WEB Registration for Concurrently Enrolled High School Students |
| Jan. 4 |
Spring Registration for Students who have completed 100 or more units at COS |
| Jan. 15 |
FLEX Day; Registration is available at www.cos.edu |
| Jan. 18 |
Martin Luther King Jr. Holiday; Registration is available at www.cos.edu |
| Jan. 19 |
Spring Semester Begins |
| Jan. 19 - 25 |
Spring Late WEB Registration With Instructor Add Codes |
| Feb. 7 |
Last Day to Drop a Class Without a "W" and Eligible for a Refund |
| Feb. 12 |
Lincoln Day Holiday (no classes) |
| Feb. 15 |
Presidents' Day Holiday (no classes) |
| Feb. 18 |
Last Day to File for Associate Degree for Spring 2027 |
| Mar. 22 - 26 |
Spring Break (no classes); Offices open March 22 - 24; closed March 25 - 26 |
| Mar. 29 |
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 |
| May 20 - 26 |
Spring Final Exams |
| May 26 |
Spring Semester Ends; Last Day to Make Up Incomplete “I” Grades for Spring 2026 Semester |
| May 27 |
Commencement Ceremony |