| Summer: Second tuition due date for any classes added through June 24 | 06/27/2022 | |
| Summer: Start of term (tuition due daily) | 06/27/2022 | |
| Summer: Start of term (tuition due daily) | 06/26/2023 | |
| Thanksgiving Weekend - Closed | - | |
| Thanksgiving Weekend – Closed | - | |
| Veterans and Students Accessing ADS Begin Registration for Winter | 11/08/2021 | |
| Veteran's Day – Closed | 11/11/2021 | |
| Veterans Day - Closed | 11/10/2023 | |
| WAOL (WA Online) Fall courses begin | 09/23/2021 | |
| WAOL (WA Online) Fall courses end | 12/02/2021 | |
| WAOL (WA Online) Summer courses end | 08/19/2021 | |
| Winter 2025 Students can begin constructing class schedule in ctcLink in preparation for Winter enrollment | 10/13/2024 | |
| Winter Admissions Application Priority Deadline for New and Former Students | 11/03/2021 | |
| Winter Quarter Begins | 01/10/2022 | |
| Winter Quarter Ends | 03/25/2022 | |
| Winter Quarter Schedule Finalized and Released (Tentative) | 11/08/2021 | |
| Winter Registration Begins For Current Students | 11/15/2021 | |
| Winter Registration Begins For Former Students | 11/29/2021 | |
| Winter Registration Begins For New Students | 12/01/2021 | |
| Winter Registration Dates Set For Current Students | 11/08/2021 | |
| Winter Registration Dates Set For Former and New Students | 11/17/2021 | |
| Winter term: 100% tuition refund deadline | 01/09/2024 | |
| Winter term: Current and former students with 0-44 credits begin enrolling | 11/01/2023 | |
| Winter Term: Current and Former students with 0-44 credits begin enrolling | 10/30/2024 | |
| Winter Term: Current and former students with 45-89 credits begin enrolling | 10/29/2024 | |
