Rock Salt shall comply with the requirements of The American Association of State Highway and Transportation Officials (AASHTO) SPECIFICATION M143, SODIUM CHLORIDE TYPE 1, GRADE 1. Rock Salt shall be free flowing fresh stock. Reclaimed or re-crushed rock salt will not be accepted and shall be rejected by delivery site. Quantity Commitments: All participants who complete the annual survey will have the option to choose between a minimum of 80% or 100% purchase commitment and will be allowed a maximum of 120% purchase commitment as defined below. All minimum purchase commitments will be defined in the line item description within BidBuy. Minimum 80% Commitment: Some participants identified from the annual survey have chosen a minimum purchase commitment of 80%. That means that if the participant estimates a quantity of 100 ton, the participant is only obligated to order 80 ton. That is 80% of the estimated quantity. The participant shall have no further liability to the Vendor for further remaining quantities.