Deadlines for 2025-2026
Semester High Schools
Fall 2025
|
ECP Fall, Year-long-Registration Deadline |
10/10/2025 |
|
Advanced Opportunities Request Deadline for fall/year-long courses |
10/15/2025 |
|
ECP Last day to drop without W and not be assessed a fee |
10/10/2025 |
|
ECP Last day to withdraw from semester long courses, fee assessed |
10/24/2025 |
|
ECP Last day to withdraw from year-long courses, fee assessed |
01/16/2026 |
Spring 2026
|
ECP Spring Registration Deadline |
02/13/2026 |
|
ECP Last day to drop without W and not be assessed a fee |
02/13/2026 |
|
Advanced Opportunities Request Deadline for spring semester courses |
03/15/2026 |
|
ECP Last day to withdraw from semester long courses, fee assessed |
03/13/2026 |
Trimester High Schools
Trimester 1 (Part of ISU Fall Semester)
|
ECP Registration Deadline |
10/10/2025 |
|
Advanced Opportunities Request Deadline for courses beginning first trimester |
10/15/2025 |
|
ECP Last day to drop without W and not be assessed a fee |
10/10/2025 |
|
ECP Last day to withdraw from first trimester courses, fee assessed |
10/24/2025 |
|
ECP Last day to withdraw from first/second trimester courses, fee assessed |
10/24/2025 |
|
ECP Last day to withdraw from year-long courses, fee assessed |
01/16/2026 |
Trimester 2 (Part of ISU Fall Semester)
|
ECP Registration Deadline |
01/09/2025 |
|
ECP Last day to drop without W and not be assessed a fee |
01/09/2026 |
|
Advanced Opportunities Request Deadline for courses beginning second trimester |
02/20/2026 |
|
ECP Last day to withdraw from second trimester courses, fee assessed |
01/16/2026 |
|
ECP Last day to withdraw from second/third trimester courses, fee assessed |
01/16/2026 |
Trimester 3 (Part of ISU Spring Semester)
|
ECP Registration Deadline |
03/20/2026 |
|
ECP Last day to drop without W and not be assessed a fee |
03/20/2026 |
|
Advanced Opportunities Request Deadline for third trimester courses |
04/03/2026 |
|
ECP Last day to withdraw from third trimester courses, fee assessed |
04/10/2026 |
Block High Schools
Block 1 (Part of ISU Fall Semester)
| ECP Registration Deadline | 09/12/2025 |
| ECP Last day to drop without W and not be assessed a fee | 09/12/2025 |
| ECP Last day to withdraw from Block 1 courses, fee assessed | 09/19/2025 |
| Advanced Opportunities Request Deadline for Block 1 courses | 10/15/2026 |
Block 2 classes (Part of ISU Fall Semester)
| ECP Registration Deadline | 10/24/2025 |
| ECP Last day to drop without W and not be assessed a fee | 10/24/2025 |
| ECP Last day to withdraw from Block 2 courses, fee assessed | 10/31/2025 |
| Advanced Opportunities Request Deadline for Block 2 courses | 02/20/2026 |
Block 3 Classes (Part of ISU Fall Semester)
| ECP Registration Deadline | 12/12/2025 |
| ECP Last day to drop without W and not be assessed a fee | 12/12/2025 |
| ECP Last day to withdraw from Block 3 courses, fee assessed | 12/19/2025 |
| Advanced Opportunities Request Deadline for Block 3 courses | 02/20/2026 |
Block 4 Classes (Part of ISU Spring Semester)
| ECP Registration Deadline | 02/13/2026 |
| ECP Last day to drop without W and not be assessed a fee | 02/13/2026 |
| ECP Last day to withdraw from Block 4 courses, fee assessed | 02/20/2026 |
| Advanced Opportunities Request Deadline for Block 3 courses | 03/15/2026 |
Block 5 Classes (Part of ISU Spring Semester)
| ECP Registration Deadline | 03/20/2026 |
| ECP Last day to drop without W and not be assessed a fee | 03/20/2026 |
| ECP Last day to withdraw from Block 5 courses, fee assessed | 04/03/2026 |
| Advanced Opportunities Request Deadline for Block 5 courses | 04/03/2026 |
Block 6 Classes (Part of ISU Spring Semester)
| ECP Registration Deadline | 05/08/2026 |
| ECP Last day to drop without W and not be assessed a fee | 05/08/2026 |
| ECP Last day to withdraw from Block 6 courses, fee assessed | 05/15/2026 |
| Advanced Opportunities Request Deadline for third trimester courses | 06/19/2026 |
Summer ECP Courses
|
ECP Registration Deadline |
06/26/2026 |
|
ECP Last day to drop without W and not be assessed a fee |
06/26/2026 |
|
ECP Last day to withdraw from summer courses, no refund |
07/10/2026 |
|
Advanced Opportunities Request Deadline for third trimester courses |
06/19/2026 |
On-Campus Courses
|
ECP Registration Deadline - Fall Semester |
09/08/2025 |
|
ECP Registration Deadline - Spring Semester |
01/26/2026 |
|
ECP Registration Deadline - Summer Semester |
One week prior to start of course |
For additional on campus deadlines please visit: https://www.isu.edu/registrar/calendars/