Open University Classes Open to the Public ☰ Fall 2024 Aug 24-Dec 17 Winter 2025 Dec 23-Jan 14 Spring 2024 Jan 22-May 11 Summer 2024 May 24-Aug 20 There are problems with the action. Please try again. Summer classes with CSUN Advancing Student Achievement Program (ASAP) for previously admitted CSUN students and Open University for visiting students and community members Enrollment begins April 2, 2024 Session One: May 24 - August 20 Session Two: May 24 - July 9 Session Three: July 10 - August 20 Search Classes How It Works Important Dates Review calendar and take note of important deadlines. Fees & Payment Review fees, payment instructions and refunds. Knowledge Center Review registration policies, student resources and more. Enroll Use your ID to login and select the classes you've identified.