20 CFR §411.205

If you disagree with the PM's decision, you may request that we review the decision. You must make the request before the 30th day after the date on which the PM sends the notice of its decision to you. We will consider you to be making timely progress toward self-supporting employment until we make a decision. We will send a written notice of our decision to you at your last known address. If we decide that you are no longer making timely progress toward self-supporting employment, our decision will be effective on the date on which we send the notice of the decision to you.