The guidelines developed by the OSD in 2008 required that the support and support elements complement a Memorandum of Understanding defining the relationship between them and the formation of the common base and the full implementation of BRAC`s joint decisions in 2005, and that the support component provide support for the facility in accordance with the new definitions and standards.  In the President`s 2010 budget, the appropriations were then transferred from the sustained components to the support component in order to align the funds with the responsibility for settlement assistance at the common bases.  In addition to the above bases, the Joint Base Balad was created as part of a combination of bases in Iraq. It was handed over to the Iraqi Air Force in 2011, when the U.S. military withdrew from the nation. The Balad joint base was operated under the direction of CENTCOM. Two authorities supported the tenants: the Basic Operating Assistance Integrator (BOS-I) and the Higher Airfield Authority (ASA). The U.S. Air Force hosted Joint Base Balad and served as both BOS-I and ASA. No agreement was required between the host and the tenant with the army or other tenants of the Joint Base Balad, as CENTCOM`s policy for BOS-I and ASA was to commit to all tenants.  JRBs are examples of typical military host-tenant relationships in which host assistance to tenants is codified in an ISSA, as provided by the DOD Directive.
 On the NAS JRB Fort Worth, the Navy is home to a variety of reserve flight units from the Navy, Marine Corps and Air Force. everyone has an ISSA with the navy for the support it needs at the base. Although not officially named by the U.S. Department of Defense, local leaders on Cape Cod and the Commonwealth of Massachusetts designated the Massachusetts Military Reserve in 2013 as a joint cape cod, reflecting its many operational tenants.   Common DIY is not subject to the DODI 4000.19 directive of the host server holding. Rather, the common base is governed by a Memorandum of Understanding between the support component of each common base providing support for the facility, and the supported components that receive installation assistance. The BRAC 2005 Act identified the supported component by requiring its base to redirect the “transfer of installation management functions to” the support component.  The Joint Systems Manufacturing Center is not a traditional common base with a host and tenant. It is a government-run, enterprise-operated site (GOCO) that has changed its name to Lima Tank Plant to reflect the “commonality” of the workplace facility for the Army, Marine Corps and Navy.  A Common Base (JB) is a U.S.
Army base that is used by several military services. a service hosts one or more services other than customers on the base. In most cases, the common bases have inter-service assistance agreements (ISSAs) to regulate how the host provides services to customers.  The 2008 OSD guidelines on the implementation of the common base defined a number of functional areas of installation support and provided for the creation of a set of common basic standards to define the expected level of service on a common basis and ensure a consistent provision of installation assistance services. Since March 2014, there are 260 common basic standards, divided into 48 functional areas and 12 categories.  The practice was born at The Realignment and Closure Base (BRAC) in 1993, where common reserve bases were established in Willow Grove, Pennsylvania, and Fort Worth, Texas. Base Realignment and Closure, 2005 was added to this list when 26 bases were grouped into 12 and renamed common bases.  In addition, several other uses of the term “common” are used on behalf of U.S. army bases [clarification required] and are described below.