California Code, Penal Code - PEN § 464

Any person who, with intent to commit crime, enters, either by day or by night, any building, whether inhabited or not, and opens or attempts to open any vault, safe, or other secure place by use of acetylene torch or electric arc, burning bar, thermal lance, oxygen lance, or any other similar device capable of burning through steel, concrete, or any other solid substance, or by use of nitroglycerine, dynamite, gunpowder, or any other explosive, is guilty of a felony and, upon conviction, shall be punished by imprisonment pursuant to subdivision (h) of Section 1170 for a term of three, five, or seven years.