The requirements for honors in mathematics are in the Honors in a Major section of the Honors Handbook:
For graduation with Honors in a Major, a student must have at least a 3.50 grade point average in the major at graduation, and honors credit in at least three courses in the major that total at least 12 semester hours. The courses must be numbered at the 200, 300, or 400 level, and may be further specified by the major department, as described in each departmental section of the University Catalogue.