RCW 48.23.050: Incontestability.

There shall be a provision that the policy shall be incontestable after it has been in force during the lifetime of the insured for a period of two years from its date of issue, except for nonpayment of premiums and except, at the option of the insurer, as to provisions relative to benefits in event of total and permanent disability and as to provisions which grant additional insurance specifically against accidental death.