Is it mandatory to the university to offer summer term?
No, it is optional for the university to offer summer term
Is it mandatory for the student to register in a summer term?
No, it is optional for the student to register in a summer term.
Note: As early registration period is approaching, all college level students are hereby advised to plan their courses' registration according to regular semesters' course offering, i.e. not to delay taking certain courses until the summer term.
Summer course offerings are highly subjective and are not guaranteed since it is optional to both the university as well as the student.