A redetermination requires you to provide new evidence to UI or information about your situation. It is your opportunity to submit something new that may change the outcome. An appeal offers the opportunity for a hearing before a neutral Appeals Referee at the Office of Administrative Hearings (OAH). There, a referee will review the claim file and make a new decision about the issue.
A redetermination may impact your claim faster if you provide information demonstrating you have overcome a barrier to eligibility.
An appeal is a formal process before a neutral Appeals Referee. If the issue is a separation, the other party is invited to attend. On average an appeal takes longer.