If you are arrested for DUI, you may request a hearing within 20 days of the arrest. In most cases, the law enforcement officer will give you a hearing request form at the time of your arrest. However, if you do not receive the form at the time of your arrest, you can make the request either online or find the form on the Washington State Department of Licensing website. If you submit the form by mail, the form must be postmarked or received within 20 calendar days from the date of the arrest in order to be validly submitted.