Cal. Insurance Code § 10206

(a) The policy shall provide that the validity of the policy shall not be contested, except for nonpayment of premiums, after it has been in force for two years from its date of issue; and that no statement made by any employee insured under the policy relating to his or her insurability shall be used in contesting the validity of the insurance with respect to which the statement was made after the insurance has been in force prior to the contest for a period of two years during the employee’s lifetime nor unless it is contained in a written application signed by the employee. (b) (1) Notwithstanding subdivision (a), if photographic identification is presented during the application or enrollment process, and if an impostor is substituted for a named insured in any part of the application or enrollment process, with or without the knowledge of the named insured, then no contract between the insurer and the named insured is formed, and any purported insurance contract is void from its inception. (2) As used in this subdivision: (A) “Application or enrollment process” means any or all of the steps required of a named insured in applying for a certificate under a group policy of life insurance, including, but not limited to, executing any part of the application or enrollment form, submitting to medical or physical examination or testing, or providing a sample or specimen of blood, urine, or other bodily substance. (B) “Impostor” means a person other than the named insured who participates in any manner in the application or enrollment process for a certificate under a group life insurance policy and represents himself or herself to be the named insured or represents that a sample or specimen of blood, urine, or other bodily substance is that of the named insured. (C) “Named insured” means the individual named in an application or enrollment form for a certificate under a group life insurance policy as the person whose life is to be insured.