<p>@JeSuis: Summer units count towards minimum progress for the academic year following that summer. See [Office</a> of the University Registrar | Minimum Progress Regulation](<a href=“http://registrar.ucdavis.edu/minprog/]Office”>Office of the University Registrar (OUR) - Minimum Progress)</p>
<p>You shouldn’t have much trouble averaging 13 per quarter during the regular academic year, though.</p>