A retirement application is deemed to be valid and binding on the date the first payment is paid. Members shall not cancel their applications, change their option choice, or change an IPERS option containing contingent annuitant benefits after that date.
If the member, the member's representative, or the member's beneficiary is unable or unwilling to provide proof of birth, or in the case of death, proof of death, IPERS may rely on such resources as it has available, including but not limited to records from the Social Security Administration, Iowa division of records and statistics, IPERS' own internal records, or reports derived from other public records, and other departmental or governmental records to which IPERS may have access.
IPERS is required to begin making payments to a member or beneficiary who has reached the required beginning date specified by Internal Revenue Code Section 401(a)(9). In order to begin making such payments and to protect IPERS' status as a plan qualified under Internal Revenue Code Section 401(a), IPERS may rely on its internal records with regard to date of birth, if the member or beneficiary is unable or unwilling to provide the proofs required by this subrule within 30 days after written notification of IPERS' intent to begin mandatory payments.
Iowa Admin. Code r. 495-11.1