Cal. MVC § 232.5

An officer who resides outside this state shall be permitted to transfer to the National Guard of any other state or territory or to the United States Army Reserve, the United States Air Force Reserve, or another federal military reserve component, in accordance with federal law, including, but not limited to, federal military service regulations. The state shall not grant an officer’s transfer to the National Guard of any other state or territory or to a federal military reserve component if the officer is under investigation, under charges, awaiting result of trial, absent without leave, absent in the hands of civil authorities, in default with respect to state or federal funds or property, mobilized for deployment on state or federal duty, or notified of impending mobilization for state or federal military duty.