The base has undergone many changes within the past several years, including the construction of half a dozen barracks, hundreds of "temporary" or transitional barracks, known as PCBs (Pre-Fabricated Concrete Buildings), three dining facilities, and the establishment of three base exchanges (AAFES), as well as a major addition of paved roads throughout the Camp. There are approximately 9,000 personnel stationed at Camp Arifjan. In addition, a number of foreign nationals also work at the base. The facility is primarily staffed by US Army Contractors.