28 CFR 79.14 - Proof of initial exposure prior to age 21.
(a) Proof of the claimant's date of birth must be established by the submission of any of the following:
(b) Absent any indication to the contrary, the Program will assume that the earliest date within the designated time period indicated on any records accepted by the Program as proof of the claimant's physical presence in the affected area or participation during a period of atmospheric nuclear testing was also the date of initial exposure.
Title 28 published on 2013-07-01
no entries appear in the Federal Register after this date.