At least one-half of the semester credit hours offered for the degree shall be in a single field of concentration. It is incumbent upon the student to elect courses with at least three instructors, two of whom represent the field of the graduate major. In addition, the student may select a minor closely allied to the major, to the thesis subject, or to the interests of the student. When a minor is listed as suitable by the major department, no special permission is necessary, but at least one-half of the minor must be completed in residence at TWU and in a field offering a graduate degree program. If a minor is selected, a faculty member from the minor program shall serve on the student's committee. The minor program, if not on the submitted degree plan, must be added to the degree plan by notification to the Graduate School. A minor selection may only be from the list of majors offered by the university and supported by the major program.