This publication, Army Techniques Publication ATP 4-92 (FM 4-92) Contracting Support to Unified Land Operations October 2014, describes Army contracting support elements' role, organization and operations in support of unified land operations. ATP 4-92 is a revision of Field Manual 4-92, Contracting Support Brigade, last published in 2010. Operational contract support (OCS) is the process of planning for and obtaining supplies, services, and construction from commercial sources in support of combatant commander directed operations. While varying in scope and scale, OCS, and its subset of expeditionary contacting capability, is a critical force multiplier in unified land operations, especially long-term stability operations. With a smaller Army, less robust active component sustainment capability, and greater emphasis on Phase 0 operations, the critical importance of operational contract support and its associated expeditionary contracting structure may increase as a necessary force augmentation capability in future operations. Accordingly, the Army continues to enhance its capability to plan and provide OCS for deployed Army and joint forces. This contracting-focused ATP is one of numerous initiatives to inform the operating force on the importance of OCS planning and integration, again with focus on the Army's expeditionary contracting force structure, in all phases of operations. ATP 4-92-along with the publications referenced throughout this manual-is intended to provide commanders and their staffs with the doctrinal and policy tools necessary to properly leverage the full spectrum of Army OCS capabilities in all phases of the operation. The publication also serves as a guide for worldwide deployment and employment of expeditionary Army contracting organizational capabilities. ATP 4-92 clarifies existing doctrine, which was focused on the CSB. Updates include mission command philosophy, the revised contracting support organizational structure, other contracting or operational contract support organizations, as well as expanded discussions of financial management (FM) in support of contracting actions. Updates also include expanded discussion on Army expeditionary contracting support to joint operations. ATP 4-92 contains three chapters: Chapter 1 provides an overview of contracting and operational contract support organizations, including the contracting support brigade and its subordinate units, along with USACE, INSCOM, LOGCAP, and ASA(ALT) forward. It also discusses command authority versus contracting authority, as well as contracting support considerations with respect to the Army force generation model. Chapter 2 includes contracting support considerations in the notional phases of the operation, from Joint Publication (JP) 3-0, as well as guidance for contracting support planning and execution, to include the vital link with financial management. Chapter 3 provides an overview of joint contracting considerations, to include lead Service and joint theater support considerations.