The Department of Defense (DoD) and its organizational supply chain professionals recognize that DoD's Supply Chain Management (SCM) system faces numerous challenges in need of management attention, especially excess inventory levels, inadequate controls, and cost overruns.Sustaining a ready, capable force through effective, joint logistics support for America's warfighters is part of the DoD logistics mission, which includes SCM. Despite major investments in SCM systems, many organizations struggle to realize anticipated benefits, often times from the lack of valid methods to measure these benefits. Capturing key elements from historical efforts that others used to assess their SCM maturity levels, Crane Army Ammunition Activity developed the Supply Chain Management Maturity Model (SCM3) and used it to assess and improve its own maturity levels.Likewise, DoD organizations could use this model to improve operations in their supply chains and thereby improve the readiness of warfighters.