Cal. Mil. & Vet. Code § 369

No parade or drill of the active militia shall be ordered in time of peace for any day during which any general election is held, nor shall any organization of the active militia drill or parade on the day during which an election is held at the place where the organization is stationed, except in cases of riot, invasion, insurrection, or imminent danger thereof, or in cases of public calamity or catastrophe.