A Missouri Rule 17 Order is a court order issued by a judge that requires parties involved in a lawsuit to appear in court for a hearing. The order is governed by Rule 17 of the Missouri Supreme Court Rules of Civil Procedure. There are two different types of Missouri Rule 17 Order: an order to appear for a deposition and an order to appear for a trial. A deposition order requires the parties involved in the lawsuit to appear in court to answer questions posed by an attorney. A trial order requires the parties to appear in court for a trial. Both orders are typically served on the parties involved in the lawsuit by a court clerk.