Contact PHMSA at: The Office of Hazardous Materials Safety, Office of Hazardous Materials Standards, East Building, PHH–10, 1200 New Jersey Avenue SE, Washington, DC 20590–0001. For information on the availability of this material at PHH–10, ... ASTM A 242–81 Standard Specification for High-Strength Low-Alloy Structural Steel, 1981, ...Web