Hawaii Revised Statutes Division 2. Business § 431:10-212

Every individual life insurance policy, every group life insurance policy, and every hospital or medical expense insurance policy, delivered or issued for delivery in this State after May 8, 1968, which provides that coverage of a dependent child shall terminate upon attainment of the limiting age for dependent children specified in the policy, shall also provide in substance that attainment of such limiting age shall not operate to terminate coverage of such child while the child is and continues to be:

provided proof of such incapacity and dependency is furnished to the insurer by the policyholder within thirty-one days of the child's attainment of the limiting age and subsequently as may be required by the insurer, but not more frequently than annually after the two-year period following child's attainment of the limiting age.