California Code
CHAPTER 2 - General Provisions and Definitions
Section 34715.

34715. No new passenger vehicle, except a passenger vehicle certified by its manufacturer as having been manufactured prior to September 1, 1973, shall be sold or registered on and after September 1, 1973, unless it has a manufacturer’s warranty that it is equipped with an appropriate energy-absorption system that meets the requirement for energy absorption systems set by the National Highway Traffic Safety Administration.

(Amended by Stats. 1977, Ch. 880.)