If you are graduating with an undergraduate degree, you may be awarded the designation Distinction under the following conditions:
Note for transfer students: this designation may be withdrawn if your CGPA at another university or in another faculty at McGill is not comparable to the CGPA earned in your graduating faculty.
Note: the Faculties of Education, Dentistry, Law, Medicine, and the Schools of Architecture, Nursing, as well as the Centre for Continuing Education do not assign the designation of Distinction to graduating students.
Note: the designation of Great Distinction is no longer awarded at graduation. Prior to September 2009, Distinction and Great Distinction were awarded at graduation according to faculty-specific regulations. You can find these rules in the faculty chapters of the 2008-2009 Undergraduate Programs Calendar or any earlier version at www.mcgill.ca/courses.
Programs, Courses and University Regulations—2009-2010 (last updated Mar. 31, 2010) (disclaimer)