Such provisions are often contained within Side A directors and officers (D&O) liability policies and, less frequently, in D&O policies written to cover privately held and nonprofit corporations. (Side A policies are those covering only the personal liability of the directors and officers rather than the liability of the corporation to indemnify them for their acts.) If an insurer rescinds a policy, it is treated as though the policy never existed, and the insurer must refund the full premium to the insured. Therefore, nonrescission provisions are advantageous for insureds.