Specifications include, but are not limited to: Firm-fixed bid differential rate per gallon contract with one (1) qualified source for the procurement of Heating Oil for Prince William County Public Schools. Contractor shall provide all necessary labor, supervision, tools, parts, materials, transportation and resources as may be required to provide #2 Heating Oil on “automatic fill” basis into underground storage tanks (UST) at each location and in accordance with the specifications and terms and conditions stated herein. The #2 Heating Oil shall conform in every respect to the detailed requirements of the American Society of Testing Materials Standard D 396-95 (ASTM). Fuel oil shall be free of grit, acid, water and fibrous or other foreign materials or natural substances likely to clog or injure the burners and valves.