Cal. UIC § 1735.1

(a) An individual who has been assessed under the provisions of Section 1128.1, or an officer, major stockholder, or other person having charge of the affairs of a business entity that has been assessed under the provisions of that section, shall be personally liable for the amount of contributions, withholdings, penalties, and interest due and unpaid by the employer, other than those under subdivisions (a) and (b) of Section 1128, for whom money was exchanged as described in Section 1128.1. The director may assess that person for the amount of contributions, withholdings, all penalties other than those under Section 1128, and interest. The provisions of Article 8 (commencing with Section 1126) and Article 9 (commencing with Section 1176) of Chapter 4 apply to assessments made pursuant to this section. Sections 1221, 1222, 1223, and 1224 apply to assessments made pursuant to this section. With respect to that person, the director shall have all the collection remedies set forth in this chapter.

(b) For purposes of this section, “business entity” means a partnership, corporation, association, limited liability company, or Indian tribe (as described by Section 3306(u) of Title 26 of the United States Code).