§ 341.8 Payment or redemption during lifetime of owner.
(a) At age 59 1⁄2 or thereafter. A Retirement Plan Bond will be redeemable at its current redemption value upon the request of the registered owner (or a person recognized as entitled to act on his behalf), provided he is 59 1⁄2 years of age or older. The owner's age will be determined from the date of birth shown on the face of the bond, provided, however, that the Secretary of the Treasury reserves the right in any case or class of cases to require proof, in the form of a duly certified copy of his birth certificate, that the owner has attained the age of 59 1⁄2 years. If such evidence is unavailable, one of the following documents may be furnished in lieu thereof:
(1) Church records of birth or baptism.
(2) Hospital birth record or certificate.
(3) Physician's or midwife's birth record.
(4) Certification of Bible or other family record.
(5) Military, naturalization or immigration records.
(6) Other evidence of probative value. Similar documentary evidence will also be required to support any claim made by an owner that the date of birth shown on his bond is incorrect.
(b) Prior to age 59 1⁄2 years. A Retirement Plan Bond will be paid at its then current redemption value upon a registered owner's request (or by a person recognized as entitled to act on his behalf) prior to his attainment of age 59 1⁄2 years upon submission of a physician's statement or any similar evidence showing that the owner has become disabled to such an extent that he is unable to engage in any substantial, gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or to be of long-continued and indefinite duration. The following are examples of impairments which would ordinarily be considered as preventing substantial, gainful activity: