You can enroll into courses as soon as they are published for each quarter (approximately 8 to 10 weeks before the quarter starts).
Since you will pay a flat tuition fee per quarter, you will not have to pay to enroll in individual courses. To enroll in certificate courses, you have a few options:
Please use the following naming convention:
Subject: Lastname, Firstname, Extension ID Number, 'Enrollment'
In email: List courses by Quarter, Course Number and Course Name
Enroll in courses with academic advisor
Note: You must enroll in courses prior to the first class meeting.