California Code of Regulations
Title 8 - Industrial Relations
Division 2 - Agricultural Labor Relations Board
Chapter 2 - Unfair Labor Practice Regulations
Section 20216 - Investigation by Regional Director

(a) The regional director shall investigate to determine whether or not there is reasonable cause to believe that an unfair labor practice has been committed.

(b) The regional director may propound written interrogatories to a charged party to be answered under oath. The regional director may propound interrogatories any time that is 10 days after service of the charge on the charged party. The scope of permissible interrogatories under this section shall be limited to threshold issues, such as the proper legal identity of the charged party; the charged party's status as a labor organization, agricultural employer, farm labor contractor, or custom harvester; whether an alleged discriminatee is an agricultural employee; and supervisory or agency status of any individual alleged to have committed an unfair labor practice. The charged party shall respond to the interrogatories within 20 days after service of the interrogatories, answering each interrogatory separately and completely, and shall sign the response under oath.

(c) If a charged party fails to respond to interrogatories propounded by the regional director, the regional director may apply to the chief administrative law judge, or the assigned administrative law judge, to compel responses from the charged party or for other appropriate relief as provided in section 20238(b).