California Code, Government Code - GOV § 16391

The Controller may, from time to time, provide that compensation due officers and employees, and amounts withheld therefrom pursuant to law, where properly chargeable to appropriations made from funds in the State Treasury, shall be paid by Controller's warrant drawn against the State Pay Roll Revolving Fund.  The amount to be disbursed from the State Pay Roll Revolving Fund at any time shall be determined by the Controller, and on his order shall be transferred from the fund and appropriation otherwise properly chargeable therewith, to the State Pay Roll Revolving Fund.