Cal. Revenue and Taxation Code § 6835

(a) The board may enter into an agreement with the Internal Revenue Service or any other state imposing a sales and use tax, or a similar tax, for the purpose of collecting delinquent tax debts with respect to amounts assessed or imposed under this part, provided the agreements do not cause the net displacement of civil service employees. The agreement may provide, at the discretion of the board, the rate of payment and the manner in which compensation for services shall be paid. (b) At the discretion of the board, the Internal Revenue Service or the other state collecting the tax debt pursuant to subdivision (a) may, as part of the collection process, refer the tax debt for litigation by its legal representatives in the name of the board. (c) For purposes of this section, “displacement” includes layoff, demotion, involuntary transfer to a new class, involuntary transfer to a new location requiring a change of residence, and time base reductions. “Displacement” does not include changes in shifts or days off, nor does it include reassignment to any other position within the same class and general location.