Each program established pursuant to this article shall be maintained in accordance with the following standards:
(a) Enrollment shall be limited to qualified persons who are residents, as defined by Section 68017, and are 60 years of age or older on the residence determination date.
(b) Persons enrolling in the program shall be registered last, after regular students have been registered for classes.
(c) No special classes limited to, or designed particularly for, senior citizens shall be established.