California Code, Penal Code - PEN § 16510

(a) Dynamite, nitroglycerine, picric acid, lead azide, fulminate of mercury, black powder, smokeless powder, propellant explosives, detonating primers, blasting caps, or commercial boosters.

(b) Substances determined to be division 1.1, 1.2, 1.3, or 1.6 explosives as classified by the United States Department of Transportation.

(c) Nitro carbo nitrate substances (blasting agent) classified as division 1.5 explosives by the United States Department of Transportation.

(d) Any material designated as an explosive by the State Fire Marshal.  The designation shall be made pursuant to the classification standards established by the United States Department of Transportation.  The State Fire Marshal shall adopt regulations in accordance with the Government Code to establish procedures for the classification and designation of explosive materials or explosive devices that are not under the jurisdiction of the United States Department of Transportation pursuant to provisions of Section 841 of Title 18 of the United States Code and published pursuant to Section 555.23 of Title 27 of the Code of Federal Regulations that define explosives.

(e) Certain division 1.4 explosives as designated by the United States Department of Transportation when listed in regulations adopted by the State Fire Marshal.

(f) As used in Section 16460 and Chapter 1 (commencing with Section 18710) of Division 5 of Title 2, “explosive” does not include any destructive device, nor does it include ammunition or small arms primers manufactured for use in shotguns, rifles, and pistols.