28 C.F.R. § 79.33
(a) Claimants associated with Department of Defense (DoD) Components or DoD Contractors.
(1) A claimant or eligible surviving beneficiary who alleges that the claimant was present onsite during a period of atmospheric nuclear testing as a member of the armed forces or an employee or contractor employee of the DoD, or any of its components or agencies, must submit the following information on the claim form:
(b) Claimants Associated with the Atomic Energy Commission (AEC) or the Department of Energy (DOE), or Who Were Members of the Federal Civil Defense Administration or the Office of Civil and Defense Mobilization.
(1) A claimant or eligible surviving beneficiary who alleges that the claimant was present onsite during the atmospheric detonation of a nuclear device as an employee of the AEC, the DOE or any of their components, agencies or offices, or as an employee of a contractor of the AEC, or DOE, or as a member of the Federal Civil Defense Administration or the Office of Civil and Defense Mobilization, must submit the following information on the claim form: