CA Civ Code Section 2986.5

(a)

No person shall lease a used motor vehicle for operation on California highways if such vehicle does not meet all of the equipment requirements of Division 12 (commencing with Section 24000) of the Vehicle Code. This subdivision does not apply to an extension or a subsequent lease of the same motor vehicle to the same lessee.

(b)

If a lessee of a vehicle pays to the lessor an amount for the licensing or transfer of title of the vehicle which amount is in excess of the actual fees due for such licensing or transfer, or which amount is in excess of the amount which has been paid, prior to the sale, by the lessor to the state in order to avoid penalties that would have accrued because of late payment of such fees, the lessor shall return such excess amount to the lessee, whether or not such lessee requests the return of the excess amount.