(1977), reprinted in 1978 U.S.C.C.A.N. 5787, 5963. Although not defined by the Bankruptcy Code, the Fifth Circuit defines a claim as contingent if the debt “is one which will be called upon to pay only upon the occurrence or happening of an extrinsic event that will trigger the liability of the debtor to the alleged creditor.” Beaumont v. Durkay (In Matter of Ford), 967 F.2d 1047, 1051 (5th Cir.1992). While a claim may not have yet accrued under state law, it may nonetheless be treated as a contingent claim within the meaning of the Bankruptcy Code. Riverwood Int’l Corp. v. Olin Corp. (In re Manville Forest Prods. Corp.), 225 B.R. 862, 866 (Bankr.S.D.N.Y.1998) aff'd, 209 F.3d 125 (2d Cir.2000); see also Hassanally v. Republic Bank (In re Hassanally), 208 B.R. 46, 50 (9th Cir. BAP 1997) (<HOLDING>). Among the circuits, several approaches have
holding that federal law determines definition of executory contract but that state law determines whether a material breach of the contract could occur holding that while state law determines the existence of a claim federal law determines when a claim arises for bankruptcy purposes holding that state law determines when an interest is perfected when interpreting the preference avoidance provision of the bankruptcy act holding for  1983 actions that although state law determines the limitations period federal law determines when the claim arises holding that state law determines when perfection occurs for purposes of the preference avoidance provision of the bankruptcy code