<p>@TheMaskedPanda - I’m not sure you have to notify them, if you simply don’t submit an ED app and submit RD instead – I didn’t even know there was a distinction between an "ED"or “RD” interview, except that there is an earlier deadline for ED applicants to complete their interview. It probably is fairly common for students who think they will apply ED at the time of the interview to change their mind and apply RD instead. </p>