No person shall install, maintain, or use for the purpose of decoration any drape, hanging curtain, drop, vegetation, bunting, cotton batting, plastic cloth, textile, excelsior, paper, or other combustible material that would tend to increase the fire and panic hazard in any building or premises to which the public is admitted or invited. Decorative materials shall be noncombustible, flame-retardant, or shall be treated and maintained in a flame-retardant condition by means of a flame-retardant process approved by the State Fire Marshal in accordance with Title 19, C.C.R.