Rule 35.10 Prior notice of witnesses

If you're asked to testify as a witness or party in a disciplinary board case, you have the right to advance notice. The board must send you written notice at least seven days before the hearing where you're expected to show up and testify.

This gives you enough time to prepare, arrange your schedule, and get ready to answer questions. The board can't spring a hearing on you at the last minute and force you to testify without fair warning. Seven days is the minimum amount of time you must be given before you're required to appear.