Montana Code Annotated 1997

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     30-4-406. Customer's duty to discover and report unauthorized signature or alteration. (1) A bank that sends or makes available to a customer a statement of account showing payment of items for the account shall either return to the customer the items paid or provide information in the statement of account sufficient to allow the customer to identify the items paid. The statement of account provides sufficient information if the item is described by item number, amount, and date of payment.
     (2) If the items are not returned to the customer, the person retaining the items shall either retain the items or, if the items are destroyed, maintain the capacity to furnish legible copies of the items until the expiration of 7 years after receipt of the items. A customer may request an item from the bank that paid the item, and that bank must provide in a reasonable time either the item or, if the item has been destroyed or is not otherwise obtainable, a legible copy of the item.
     (3) If a bank sends or makes available a statement of account or items pursuant to subsection (1), the customer shall exercise reasonable promptness in examining the statement or the item to determine whether any payment was not authorized because of an alteration of an item or because a purported signature by or on behalf of the customer was not authorized. If, based on the statement or items provided, the customer should reasonably have discovered the unauthorized payment, the customer has a duty to give prompt notification to the bank of the relevant facts.
     (4) If the bank proves that the customer failed with respect to an item to comply with the duties imposed on the customer by subsection (3) the customer is precluded from asserting against the bank:
     (a) the customer's unauthorized signature or any alteration on the item if the bank also establishes that it suffered a loss by reason of such failure; and
     (b) the customer's unauthorized signature or alteration by the same wrongdoer on any other item paid in good faith by the bank if the payment was made before the bank received notification from the customer of the unauthorized signature or alteration and after the customer had been afforded a reasonable period of time in which to examine the item or statement of account and notify the bank. "Reasonable period of time" is presumed to be 14 calendar days after the item or statement pursuant to subsection (1) was received by or made available to the customer.
     (5) If subsection (4) applies and the customer proves that the bank failed to exercise ordinary care in paying the item and that the failure substantially contributed to loss, the loss is allocated between the customer precluded and the bank asserting the preclusion according to the extent to which the failure of each to exercise ordinary care contributed to the loss. If the customer proves that the bank did not pay the item in good faith, the preclusion under subsection (4) does not apply.
     (6) Without regard to care or lack of care of either the customer or the bank a customer who does not within 1 year from the time the statement or items are made available to the customer (subsection (1)) discover and report the customer's unauthorized signature or any alteration is precluded from asserting against the bank such unauthorized signature or alteration. If there is a preclusion under this subsection, the payor bank may not recover for breach of warranty under 30-4-215 with respect to the unauthorized signature or alteration to which the preclusion applies.

     History: En. Sec. 4-406, Ch. 264, L. 1963; R.C.M. 1947, 87A-4-406; amd. Sec. 186, Ch. 410, L. 1991.

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