California Code
ARTICLE 2 - Definitions
Section 11405.40.

11405.40. “Agency head” means a person or body in which the ultimate legal authority of an agency is vested, and includes a person or body to which the power to act is delegated pursuant to authority to delegate the agency’s power to hear and decide.

(Added by Stats. 1995, Ch. 938, Sec. 21. Effective January 1, 1996. Operative July 1, 1997, by Sec. 98 of Ch. 938 and Section 11400.10.)