Cal. Health and Safety Code § 11999.6.1

(a) Notwithstanding any other provision of law, when the department allocates funds appropriated to the Substance Abuse Treatment Trust Fund, it shall withhold from any allocation to a county the amount of funds previously allocated to that county from the fund that are projected to remain unencumbered, up to the amount that would otherwise be allocated to that county. The department shall allow a county with unencumbered funds to retain a reserve of 5 percent of the amount allocated to that county for the most recent fiscal year in which the county received an allocation from the fund without a reduction pursuant to this subdivision. (b) The department shall allocate 75 percent of the amount withheld pursuant to subdivision (a) in accordance with Section 11999.6 and any regulations adopted pursuant to that section, but taking into account any amount withheld pursuant to subdivision (a). (c) The department shall reserve 25 percent of the amount withheld pursuant to subdivision (a) until all counties have submitted final actual expenditures for the most recent fiscal year. The department shall then allocate the funds reserved to adjust for actual rather than projected unencumbered funds, to the extent that the amount reserved is adequate to do so. Any balance of funds not reallocated pursuant to this subdivision shall be allocated in accordance with subdivision (e). (d) If the department determines from actual expenditures that more funds should have been withheld from any county than were withheld pursuant to subdivision (a), it shall adjust any allocations pursuant to subdivision (e) accordingly, to the extent possible. If one or more counties fails to report actual expenditures in a timely manner, the department may, in its discretion, proceed with the available information, and may exclude any nonreporting county from any allocations pursuant to this section. (e) If revenues, funds, or other receipts to the Substance Abuse Treatment Trust Fund are sufficient to create additional allocations to counties, through reconsideration of unencumbered funds, audit recoveries, or otherwise, the Director of Finance may authorize expenditures for the department in excess of the amount appropriated no earlier than 30 days after notification in writing of the necessity therefor is provided to the chairpersons of the fiscal committees in each house and the Chairperson of the Joint Legislative Budget Committee, or at an earlier time that the Chairperson of the Joint Legislative Budget Committee, or his or her designee, may in each instance determine. (f) The department may implement this section by All-County Lead Agency letters or other similar instructions, and need not comply with the rulemaking requirements of Chapter 3.5 (commencing with Section 11340) of Division 3 of Title 2 of the Government Code.