California Code
CHAPTER 3 - Burglarious and Larcenous Instruments and Deadly Weapons
Section 466.7.

466.7. Every person who, with the intent to use it in the commission of an unlawful act, possesses a motor vehicle key with knowledge that such key was made without the consent of either the registered or legal owner of the motor vehicle or of a person who is in lawful possession of the motor vehicle, is guilty of a misdemeanor.

(Added by Stats. 1977, Ch. 1147.)