32 C.F.R. § 536.79 Where claim must be presented.
Title 32 - National Defense
A claim must be presented to the appropriate Federal agency. Receipt of a written claim by any full time officer or employee of the National Guard will be considered receipt. However, the statute of limitations is tolled if a claim is filed with a State agency, the claim purports to be under the NGCA and it is forwarded to the Army within 6 months, or the claimant makes inquiry of the Army concerning the claim within 6 months. If a claim is received by a DA official who is not a claims approval or settlement authority, the claim will be transmitted without delay to the nearest approval or settlement authority.
Title 32: National Defense
PART 536—CLAIMS AGAINST THE UNITED STATES
Subpart C—Claims Arising From Activities of National Guard Personnel While Engaged in Duty or Training
§ 536.79 Where claim must be presented.

