Specifications include, but are not limited to: Quantities to be purchased are indefinite, dependent upon requirements, and therefore cannot be determined at the time bids are received. For that reason the Department reserves the right to make purchases from time to time in any quantities required to meet its current needs. There is a possibility that no purchases will be made on some of the bids accepted. The supplier will be required to furnish the mix at the temperature requested by the district engineer up to a maximum temperature at discharge of 2900 Fahrenheit. The unit price bid shall include all discounts and deductions, and shall be F.O.B. plant site, either loaded directly into NDDOT trucks or picked up from a stockpile, as indicated on the bid sheet. The State does not pay sales tax or federal excise tax.