Regression is not allowed. Hours earned by regression do not count toward the total number of hours required for graduation. 

Regression occurs when a student takes a lower-level or prerequisite course after having satisfactorily completed a more advanced course in the same or related subject. Regression occurs when a course in the left-hand column is taken after any of the courses in the right-hand column.

NOTE: Each line establishes a regression if the first class (before the colon) is taken after any of the courses following the colon. The "+" indicates any course with that number or higher.