Department of Defense
INSTRUCTION
NUMBER 4151.19
January 9, 2014
Incorporating Change 1, November 1, 2017
USD(AT&L)
SUBJECT: Serialized Item Management (SIM) for Life-Cycle Management of Materiel
References: See Enclosure 1
1. PURPOSE. In accordance with the authority in DoD Directive 5134.01 (Reference (a)), and
pursuant to DoD Directive 4151.18 (Reference (b)), this instruction reissues DoD Instruction
(DoDI) 4151.19 (Reference (c)) to update established policy and assigned responsibilities for
implementing SIM in support of the life-cycle management of materiel.
2. APPLICABILITY. This instruction applies to OSD, the Military Departments, the Office of
the Chairman of the Joint Chiefs of Staff and the Joint Staff, the Combatant Commands, the
Office of the Inspector General of the Department of Defense, the Defense Agencies, the DoD
Field Activities, and all other organizational entities in the DoD (referred to collectively in this
instruction as the “DoD Components”).
3. POLICY. It is DoD policy to:
a. Implement SIM to enable effective and efficient life-cycle management of materiel
through the creation, capture, and use of life-cycle item management data (LCIM). LCIM data
will:
(1) Help achieve optimum materiel availability at the best total ownership cost.
(2) Provide key performance parameters and key system attributes for weapons systems
sustainment.
(3) Be used to:
(a) Improve the effectiveness and efficiency of DoD design, manufacturing,
procurement, operations, maintenance, and logistics functions.
(b) Improve weapon system readiness, reliability, and safety.
