Cal. Penal Code § 453

(a) Every person who possesses, manufactures, or disposes of any flammable, or combustible material or substance, or any incendiary device in an arrangement or preparation, with intent to willfully and maliciously use this material, substance, or device to set fire to or burn any structure, forest land, or property, shall be punished by imprisonment pursuant to subdivision (h) of Section 1170, or in a county jail, not exceeding one year. (b) For the purposes of this section: (1) “Disposes of” means to give, give away, loan, offer, offer for sale, sell, or transfer. (2) “Incendiary device” means a device that is constructed or designed to start an incendiary fire by remote, delayed, or instant means, but no device commercially manufactured primarily for the purpose of illumination shall be deemed to be an incendiary device for the purposes of this section. (3) “Incendiary fire” means a fire that is deliberately ignited under circumstances in which a person knows that the fire should not be ignited. (c) Subdivision (a) does not prohibit the authorized use or possession of any material, substance or device described therein by a member of the armed forces of the United States or by firemen, police officers, peace officers, or law enforcement officers authorized by the properly constituted authorities; nor does that subdivision prohibit the use or possession of any material, substance or device described therein when used solely for scientific research or educational purposes, or for disposal of brush under permit as provided for in Section 4494 of the Public Resources Code, or for any other lawful burning. Subdivision (a) does not prohibit the manufacture or disposal of an incendiary device for the parties or purposes described in this subdivision.