The Defense Threat Reduction Agency (DTRA), Contracting Activity proposes to restrict consideration to an item peculiar to one (1) manufacturer, Gartner Inc., for the procurement of information technology (IT) research subscription and advisory services. Using the Federal Acquisition Regulation (FAR) 8.405-6( a)(l )(B) which allows for the limitation of sources if" [o]nly one source is capable of providing the supplies or services required at the level of quality required because the supplies or services are unique or highly specialized." This contract action will be a base year plus four option periods. The North American Industry Classification System (NAICs) code for this requirement is 519130 . The Point of Contact (POC) for this notice is Contract Specialist, John M. Pleasant, telephone: 571-616-6528, email: john.m.pleasant.civ@mail.mil.