Assessment: Contents of recovered items at PBA were identified using the Pine Bluff Munitions Assessment System (PBMAS). PBMAS determined the contents and explosive condition of items before processing to enhance safe handling, treatment and disposal. PBMAS began analyzing the items in July 2005, using an X-ray system known as Digital Radiography and Computed Tomography, along with an assessment system known as Portable Isotopic Neutron Spectroscopy. Prior to PBMAS, NSCMP also assessed 300 drums that contained recovered chemical warfare materiel, known as the XP300 mission.