32 CFR §842.91

1. (a)Elements of a proper claim. A claim is must be filed on a Standard Form 95 or other written document. It must be signed by the Claimant or authorized agent, be for money damages in a sum certain, and lay out a basic statement as to the nature of the claim that will allow the Air Force to investigate the allegations contained therein.
2. (b)Amending a claim. A claimant may amend a claim at any time prior to final action. To amend a claim the claimant or his or her authorized agent must submit a written, signed demand.