Specifications include, but are not limited to: 1. All aluminum blanks and aluminum sheets shall conform to the requirements of ASTM B209 for Alloy 5052-H38 or 6061-T6. 2. Each size specified shall consist of a single piece. All edges shall be free of burrs. 3. All sign blanks and aluminum sheets shall be finished on both sides with a chromate conversion coating in accordance with ASTM B449, Class 2. The treatment shall produce a uniform coating tightly adherent to the metal, showing no dusting of the coating surface, and having a color within the range of silvery iridescent to pale yellow. 4. All circles, U.S. cut-out shields, and interstate shields shall be die-cut so they will be accurately cut to a uniform size and shape. SHIPPING INSTRUCTIONS: 1. FOB - Sioux Falls, SD. 2. 3000 lbs. per skid maximum. 3. Orders must arrive on flatbed truck. 4. Deliver to: State Penitentiary 1600 North Drive Sioux Falls, SD 57117 605-367-5101. 5. Receiving hours: 7:00 am to 1:30 pm. 6. Notification of an estimated delivery date is preferred. 7. Call 3 to 5 days in advance of delivery.