Cal. Pen. Code § 1463.5
The distribution of funds required pursuant to Section 1463, and the distribution of assessments imposed and collected under Section 1464 and Section 42006 of the Vehicle Code, may be determined and made upon the basis of probability sampling. The sampling shall be procedural in nature and shall not substantively modify the distributions required pursuant to Sections 1463 and 1464 and Section 42006 of the Vehicle Code. The procedure for the sampling shall be prescribed by the county auditor and the procedure and its implementation shall be approved by the board of supervisors and a majority of the cities within a county. The reasonableness of the distribution shall be verified during the audit performed pursuant to Section 71383 of the Government Code.
Ca. Pen. Code § 1463.5