Cal. LAB § 5710

(a) The appeals board, a workers’ compensation judge, or any party to the action or proceeding, may, in any investigation or hearing before the appeals board, cause the deposition of witnesses residing within or without the state to be taken in the manner prescribed by law for like depositions in civil actions in the superior courts of this state under Title 4 (commencing with Section 2016.010) of Part 4 of the Code of Civil Procedure. To that end the attendance of witnesses and the production of records may be required. Depositions may be taken outside the state before any officer authorized to administer oaths. The appeals board or a workers’ compensation judge in any proceeding before the appeals board may cause evidence to be taken in other jurisdictions before the agency authorized to hear workers’ compensation matters in those other jurisdictions.

(b) If the employer or insurance carrier requests a deposition to be taken of an injured employee, or any person claiming benefits as a dependent of an injured employee, the deponent is entitled to receive in addition to all other benefits:

(1) All reasonable expenses of transportation, meals, and lodging incident to the deposition.

(2) Reimbursement for any loss of wages incurred during attendance at the deposition.

(3) One copy of the transcript of the deposition, without cost.

(4) A reasonable allowance for attorney’s fees for the deponent, if represented by an attorney licensed by the State Bar of this state. The fee shall be discretionary with, and, if allowed, shall be set by, the appeals board, but shall be paid by the employer or his or her insurer. The administrative director shall, on or before July 1, 2018, determine the range of reasonable fees to be paid.

(5) If interpretation services are required because the injured employee or deponent does not proficiently speak or understand the English language, upon a request from either, the employer shall pay for the services of a language interpreter certified or deemed certified pursuant to Article 8 (commencing with Section 11435.05) of Chapter 4.5 of Part 1 of Division 3 of Title 2 of, or Section 68566 of, the Government Code. The fee to be paid by the employer shall be in accordance with the fee schedule adopted by the administrative director and shall include any other deposition-related events as permitted by the administrative director.