Section 756.4 - Responsibility(a) All claims resulting from NAFIs should be submitted to the command having cognizance over the NAFI involved. The claim will then be forwarded to the Tort Claims Unit (TCU) Norfolk located at the following address: Department of the Navy, Office of the Judge Advocate General, Tort Claims Unit Norfolk, 9620 Maryland Avenue, Suite 100, Norfolk, VA 23511-2989.(b) The TCU Norfolk has cognizance over all DoN claims. Normally, the TCU Norfolk has primary responsibility for the negotiation and settlement of NAFI claims. This is because NAFIs are Federal agencies within the meaning of the Federal Tort Claims Act (FTCA) if the NAFI is charged with an essential function of the DoN and if the degree of control and supervision by the Navy is more than casual or perfunctory. Compare United States v. Holcombe, 277 F.2d 143 (4th Cir. 1960) and Scott v. United States, 226 F. Supp. 846, (D. Ga. 1963). Consequently, to the extent sovereign immunity is waived by the FTCA, 28 U.S.C. 1346(b) , 2671-2672 , 2674-2680 , the United States remains ultimately liable for payment of NAFI claims.72 FR 53425, Sept. 19, 2007