Case Orders and Decisions The OAH provides the following Case Orders and Decisions online by year. Previously known as the Office of Adjudication and Hearings, the agency changed to the Office of Administrative Hearings on March 22, 2004. Documents dated before March 22, 2004, reflect the old agency title "Office of Adjudication and Hearings." Select the date below to view Case Orders and Decisions: Microsoft Corporation, Inc. v. Office of Tax and Revenue (2010-OTR-00012) 2008 2007 2006 2005 2004 2003 2002 2001 2000