Cal. Unemp. Ins. Code § 3655

(a) The Employment Development Department shall consider the facts submitted by an employer pursuant to Section 3654 and, if benefits are claimed subsequent to the filing of the extended duration benefits claim, make a determination as to the exhaustee’s eligibility for the extended duration benefits. The Employment Development Department shall promptly notify the exhaustee and any employer who prior to the determination has submitted any facts pursuant to Section 3654 of the determination and the reasons therefor. The exhaustee and the employer may appeal therefrom to an administrative law judge within 30 days from mailing or personal service of notice of the determination. The 30-day period may be extended for good cause. The Director of Employment Development shall be an interested party to any appeal.