47-2612. ' Installment contract' ; breach A. An ' installment contract' is one which requires or authorizes the delivery of goods in separate lots to be separately accepted, even though the contract contains a clause ' each delivery is a separate contract' or its equivalent. B. The buyer may reject any installment which is non-conforming if the non-conformity substantially impairs the value of that installment and cannot be cured or if the non-conformity is a defect in the required documents; but if the non-conformity does not fall within subsection C and the seller gives adequate assurance of its cure the buyer must accept that installment. C. Whenever non-conformity or default with respect to one or more installments substantially impairs the value of the whole contract there is a breach of the whole. But the aggrieved party reinstates the contract if he accepts a non-conforming installment without seasonably notifying of cancellation or if he brings an action with respect only to past installments or demands performance as to future installments.
Arizona Legal Code