Cal. LAB § 1695.9

Any person contracted by a farm labor contractor who is acting in the capacity of a farm labor contractor shall first provide to the farm labor contractor a copy of his or her current valid state license. A farm labor contractor is responsible for ensuring that every person who is performing farm labor contracting activities on behalf of the farm labor contractor has obtained a farm labor contractor license as required by Section 1683 prior to the person’s engagement in any activity described in subdivision (b) of Section 1682. A farm labor contractor who utilizes the services of another farm labor contractor who is not his or her employee shall also comply with the provisions of this chapter. The farm labor contractor is responsible for any violations of this chapter committed by his or her employee, whether or not the employee has registered as required by this chapter. The farm labor contractor shall keep a copy of the license or licenses for a period of three years following the termination of the contract or agreement.