The general rule for adding students to classes is don't . The class size has been set so that as many students as possible can be accommodated.
Additional registrants affect the delivery and quality of instruction and limit scarce resources.
There are exceptions to every rule. If you are willing to accommodate a student who must enroll in your class, then send the student to the Business Division office with a note indicating your approval to register. The student will receive the proper form and authorization to add a course. All students' overloads require the Division Chair's approval and signature. For all non-standard courses be sure to check with the secretary for the correct census date.