We ask that you set the start and end dates for your class to the dates you will actually be in class, but within 90 days if you are adding modules.
Please keep in mind that the start and end dates set when creating your class at certification.ipcedge.org only restrict when the instructor can enroll or remove a student from the class. The student will be able to access exams as scheduled at my.ipcedge.org even after the end date set at certification.ipcedge.org has passed.