... requirements of NASA Policy Directive (NPD) 8710.5, NASA Safety Policy for Pressure Vessels and Pressurized Systems, and JSC Policy Directive (JPD) 1710.1, Design, Inspection, and Certification of Pressure ... before use. xi Design, Inspection, and Certification of Pressure Vessels and Pressurized Systems August 2004 Approved by ______(original signed by)______ Yolanda Y. Marshall Director, ... Pressure Vessels. Design all permanent pressure and vacuum vessels to the requirements of Section VIII, Division 1, 2 or 3, of the ASME Boiler and Pressure Vessel Code. (2) Mobile/Portable Pressure...