Cal. Rev. & Tax. Code § 30125

Funds expended pursuant to this article shall be used only for the purposes expressed in this article and shall be used to supplement existing levels of service and not to fund existing levels of service. The fund and accounts in the fund may be used for loans to the General Fund as provided in Sections 16310 and 16381 of the Government Code. The loans shall be repaid with interest from the General Fund at the Pooled Money Investment Account rate.