In addition to statutory requirements and rules governing criminal motions set forth in the California Rules of Court, the Superior Court of Orange County has adopted local rules of court for motions. The rules include when specified motions are heard, service requirements, and when the motion must be filed by. The rules also include requirements for filing opposition or a reply to a motion.

Unless otherwise set forth by statute or rule, most motions and opposition/replies to motions must first be served upon the opposing party before being filed with the court. The clerk may refuse to file any documents not in compliance with the Superior Court of Orange County Local Rules of Court.