Students may audit courses with the permission of the instructor if they desire to attend classes regularly but do not wish to receive a grade and credit. Upon registration, the students must declare that they wish to take a course for audit or for credit. Students may not change from audit to credit, or vice versa, after Census Date. When registering, students may take both audit and credit courses but the total should not exceed the maximum course load. Students who audit a course and later wish to obtain regular credit for the same course may do so by credit by special examination, for an additional fee, or by repeating the course for credit. Repeating a previously audited course is not considered a grade replacement.