La. R.S. 10:5-115

An action to enforce a right or obligation arising under this Chapter must be commenced within one year after the expiration date of the relevant letter of credit or one year after the cause of action accrues, whichever occurs later, except an action to enforce an issuer's right of reimbursement under R.S. 10:5-108 must be commenced within five years of the date of its payment of funds. A cause of action accrues when the breach occurs, regardless of the aggrieved party's lack of knowledge of the breach.