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Open Classes for Fall 2025
This page lists Mt. SAC classes with at least two open seats and is updated approximately every five minutes. Click the refresh button on your browser to see the latest list of open classes.
If you find a class you would like to take, click here to login to the portal and click the #4 Register (Add or Drop) Classes link on the Student tab to register for the class.
Note: If no results are displayed, click your browser's refresh button as results may be in the process of updating. If classes are not listed after the refresh, open classes may not be available.
| Subject | Course Number | CRN | Start Time | End Time | Start Date | End Date | CRS DAYS | ROOM | Division | Instructor | Seats Available | |
| WELD | 40 | 20823 | 06:00 PM | 07:05 PM | 25-AUG-2025 | 14-DEC-2025 | T | 69-6911 | ATHS | Staff | 18 | |
| WELD | 40 | 20827 | 06:00 PM | 07:05 PM | 25-AUG-2025 | 14-DEC-2025 | W | 69-6911 | ATHS | David Mark | dmark@mtsac.edu | 17 |
| WELD | 40 | 20829 | 01:00 PM | 02:05 PM | 25-AUG-2025 | 14-DEC-2025 | Th | 69-6911 | ATHS | Raul Tapia | rtapia@mtsac.edu | 18 |
| WELD | 40 | 20833 | 01:00 PM | 02:05 PM | 25-AUG-2025 | 14-DEC-2025 | T | 69-6912 | ATHS | Staff | 17 | |
| WELD | 40 | 20836 | 01:00 PM | 02:05 PM | 25-AUG-2025 | 14-DEC-2025 | S | 69-6911 | ATHS | Braydon Fidak | bfidak@mtsac.edu | 19 |
| WELD | 40 | 20839 | 08:15 AM | 09:20 AM | 25-AUG-2025 | 14-DEC-2025 | W | 69-6911 | ATHS | Randy Montes | rmontes19@mtsac.edu | 18 |
| WELD | 50 | 20843 | 01:00 PM | 02:05 PM | 25-AUG-2025 | 14-DEC-2025 | W | 69-6921 | ATHS | Raul Tapia | rtapia@mtsac.edu | 17 |
| WELD | 50 | 20848 | 01:00 PM | 02:05 PM | 25-AUG-2025 | 14-DEC-2025 | M | 69-6912 | ATHS | Daniel Garcia | djgarcia@mtsac.edu | 17 |
| WELD | 50 | 20853 | 06:00 PM | 07:05 PM | 25-AUG-2025 | 14-DEC-2025 | F | 69-6912 | ATHS | Randy Montes | rmontes19@mtsac.edu | 18 |
| WELD | 51 | 20857 | 08:00 AM | 09:05 AM | 25-AUG-2025 | 14-DEC-2025 | T | 69-6911 | ATHS | Randy Montes | rmontes19@mtsac.edu | 15 |
| WELD | 51 | 20858 | 08:00 AM | 09:05 AM | 25-AUG-2025 | 14-DEC-2025 | Th | 69-6911 | ATHS | Raul Tapia | rtapia@mtsac.edu | 19 |
| WELD | 51 | 20862 | 06:00 PM | 07:05 PM | 25-AUG-2025 | 14-DEC-2025 | F | 69-6911 | ATHS | Christian Gallardo | cgallardo8@mtsac.edu | 16 |
| WELD | 60 | 20863 | 08:30 AM | 11:40 AM | 25-AUG-2025 | 14-DEC-2025 | W | 69-6921 | ATHS | John Kuchta | jkuchta@mtsac.edu | 18 |
| WELD | 60 | 20866 | 08:30 AM | 11:40 AM | 25-AUG-2025 | 14-DEC-2025 | Th | 69-6921 | ATHS | John Kuchta | jkuchta@mtsac.edu | 17 |
| WELD | 70A | 20868 | 01:00 PM | 04:35 PM | 25-AUG-2025 | 14-DEC-2025 | W | 69-6910 | ATHS | John Kuchta | jkuchta@mtsac.edu | 19 |
| WELD | 70A | 20879 | 06:15 PM | 07:20 PM | 25-AUG-2025 | 14-DEC-2025 | T | 69-6921 | ATHS | Randy Montes | rmontes19@mtsac.edu | 17 |
| WELD | 70B | 20881 | 08:15 AM | 11:50 AM | 25-AUG-2025 | 14-DEC-2025 | W | 69-6910 | ATHS | Daniel Garcia | djgarcia@mtsac.edu | 16 |
| WELD | 70B | 20885 | 09:45 AM | 12:00 PM | 25-AUG-2025 | 14-DEC-2025 | S | 69-6910 | ATHS | Randy Montes | rmontes19@mtsac.edu | 18 |
| WELD | 70C | 20891 | 05:00 PM | 08:35 PM | 25-AUG-2025 | 14-DEC-2025 | W | 69-6910 | ATHS | Raul Tapia | rtapia@mtsac.edu | 17 |
| WELD | 70C | 20901 | 01:00 PM | 04:35 PM | 25-AUG-2025 | 14-DEC-2025 | Th | 69-6910 | ATHS | Daniel Garcia | djgarcia@mtsac.edu | 19 |
| WELD | 80 | 20873 | 08:30 AM | 09:35 AM | 25-AUG-2025 | 14-DEC-2025 | F | 69-6911 | ATHS | Raul Tapia | rtapia@mtsac.edu | 14 |
| WELD | 81 | 20904 | 08:00 AM | 09:35 AM | 25-AUG-2025 | 14-DEC-2025 | F | 69-6921 | ATHS | John Kuchta | jkuchta@mtsac.edu | 14 |
| WELD | 90A | 20909 | 08:15 AM | 11:50 AM | 25-AUG-2025 | 14-DEC-2025 | Th | 69-6910 | ATHS | Daniel Garcia | djgarcia@mtsac.edu | 15 |
| WELD | 90A | 20915 | 06:15 PM | 09:50 PM | 25-AUG-2025 | 14-DEC-2025 | W | 69-6910 | ATHS | John Kuchta | jkuchta@mtsac.edu | 14 |
| WELD | 90B | 20920 | 08:30 AM | 09:35 AM | 25-AUG-2025 | 14-DEC-2025 | S | 69-6921 | ATHS | Christian Gallardo | cgallardo8@mtsac.edu | 14 |
| Click here to login into the portal to register for classes. Click here to search for classes in Fall 2025 or another term |
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