Okla. Stat. tit. 36, § 36-4407

A. The insured shall not be bound by any statement made in an

application for a policy unless a copy of such application is

attached to or endorsed on the policy when issued as a part thereof.

If any such policy delivered or issued for delivery to any person in

this state shall be reinstated or renewed, and the insured or the

beneficiary or assignee of such policy shall make written request to

the insurer for a copy of the application, if any, for such

reinstatement or renewal, the insurer shall, within fifteen (15)

days after the receipt of such request at its home office or any

branch office of the insurer, deliver or mail to the person making

such request a copy of such application. If such copy shall not be

so delivered or mailed, the insurer shall be precluded from

introducing such application as evidence in any action or proceeding

based upon or involving such policy or its reinstatement or renewal.

B. No alteration of any written application for any such policy

shall be made by any person other than the applicant without his

written consent, except that insertions may be made by the insurer,

for administrative purposes only, in such manner as to indicate

clearly that such insertions are not to be ascribed to the

applicant.

C. The falsity of any statement in the application for any

policy covered by this article may not bar the right to recovery

thereunder unless such false statement materially affected either

the acceptance of the risk or the hazard assumed by the insurer.