California Code, Education Code - EDC § 66762.5

A matriculated CSU student shall have priority access to online courses provided at his or her home campus.  A CSU student who meets the requirements of subdivision (a) of Section 66761, and seeks to enroll in courses provided entirely online by another CSU campus, shall be able to enroll, provided that cross-enrollment students generally have an opportunity to enroll in these online courses at any time after the priority enrollment period for continuing students, as determined by each host campus.  The enrollment policy of the host campus shall, to the extent possible, encourage cross-enrollment as provided for in this chapter.