MCTP 3-40A governs health service support activities by addressing principles for planning and executing Marine air-ground task force operations.
View MCTP 3-40A on armypubs.army.mil
It provides a doctrinal overview of health service support tasks and functions, including capabilities, planning considerations, command relationships, and support requirements. Its chapters cover fundamentals, medical intelligence, operations, casualty care, triage, functional areas, and planning.