Name the five sustainment functions usually taught in LOG BOLC.

• A. Supply, maintenance, transportation, field services, and health service support
• B. Supply, procurement, intelligence, operations, and risk management
• C. Transportation, logistics planning, maintenance, and engineering
• D. Health service support, medical logistics, field operations, and personnel services

Answer: (A)

The five sustainment functions you study in LOG BOLC are the core ways the Army keeps a force equipped and ready: supply, maintenance, transportation, field services, and health service support. Supply handles getting materiel to the right place in the right quantities—everything from parts and fuel to end items the unit needs. Maintenance keeps equipment and systems functioning through preventive and corrective work, ensuring readiness rather than waiting for failure. Transportation moves people and materiel where they need to be, coordinating across modes and routes to support operations. Field services cover the in-theater support that keeps daily operations going—things like provisioning, services in the field, and related activities that enable the unit to sustain itself on the move. Health service support provides medical care, evacuation, and medical logistics to protect force health and welfare. While other activities like procurement or broader planning are important to logistics, they aren’t counted among these five sustainment functions in this framework.