Cal. Penal Code § 11147

In order that a thorough search may be conducted, the agencies listed in Section 11146 shall require applicants, as a condition of employment or licensing, to provide (a) their social security and drivers’ license numbers, (b) educational history, (c) three personal references, (d) a five-year employment and residence history, and, (e) if appropriate, any other names they may have been known under. This information shall be provided under penalty of perjury.