I was a transfer to COE last year. Your application automatically defaults to Summer because the engineering admission office assumes you may want to take advantage of summer classes to get caught up with the current freshman class. In most cases this is for the required intro engineering sequence. The summer classes also give you an opportunity to earn 12 credits of elective or other classes so that you can apply immediately for your choice of engineering major. Once admitted, you can request for a change of admissions to Fall. The general engineering office will be able to do an evaluation of your transfer credits prior to the start of summer classes to advise you.