The Judicial Council has preempted all local rules relating to pleadings, demurrers, ex parte applications, motions, discovery, provisional remedies, and the form and format of papers. No trial court, or any division or branch of a trial court, may enact or enforce any local rule concerning these fields. All local rules concerning these fields are null and void unless otherwise permitted or required by a statute or a rule in the California Rules of Court.
This rule applies to all matters identified in (a) except:
(Subd (b) amended effective January 1, 2015; adopted effective July 1, 2000; previously amended effective July 1, 2000, January 1, 2002, and January 1, 2007)
Cal. R. Ct. 3.20