Normally the NMU Purchasing Department will accept the low bid, provided that the items/services meet the requirements and specifications indicated on the bid document. Questions and acceptability are resolved by the buyer, often with technical assistance of NMU personnel. If a department wishes to accept a bid other than the low bid, it needs to forward a letter justifying the rejection of the low bid to the Purchasing Department. The letter must give, in detail, the advantages of the preferred item over that of the low bid. Such items as service, product life, cycle cost and special features should be indicated. It must be signed by the user and by the department head.