The total direct, indirect, or contingent liability of any borrower to any state banking association shall not exceed at any time twenty-five percent of the association's tier 1 capital as of the most recent report of condition and income. For the purpose of this section, the total liability of a borrower includes the liabilities of any separate borrowers for which the repayment of separate loans or extensions of credit is substantially from the same source and any credit exposure to a borrower arising from a derivative transaction, repurchase agreement, reverse repurchase agreement, securities lending transaction, or securities borrowing transaction between the state banking association and the borrower.
N.D.C.C. § 6-03-59