Found this on the Undergraduate Calendar... Thought it might be helpful!
Minors
If you are enrolled in a four- or five-level program (with the exception of the Medical Radiation Sciences program which is a three-level program offered over a four-year period), you are eligible to obtain a Minor in another subject area, provided that the subject area is not integral to the requirements of your degree program. You should check the calendar requirements statement for your program in the case of Science programs, or check with your Faculty in the case of other programs, for subject areas that are excluded from consideration as a Minor in your program.
If you wish to receive a Minor, you should check the information under the heading Minor in the appropriate department’s listing. McMaster also offers Minors in Archaeology, Globalization Studies and Jewish Studies. (See Interdisciplinary Minors and Thematic Areas section.) You will be responsible for ensuring that you register in the required Minor courses. Normally, you must complete a minimum of 24 units in the Minor subject. No more than six of these units can be at Level I, unless otherwise stated in the specific requirements of the minor. At least 18 units must be completed at McMaster.
In the final year of your program, when you complete your profile in the online Graduation Information Centre, you must indicate your desire to receive a Minor in the chosen subject. The Faculty Reviewing Committee will verify that the requirements have been met. If you are successful, your transcript
will contain a designation for Minor in that area. See Sessional Dates section for deadlines.
Minors cannot be revoked once approved. (See Note 3 under Second Bachelor’s Degree Programs.)