ADP 4-0 — Sustainment (this Item Is Published W/ Basic Incl C1)
ADP 4-0 governs sustainment doctrine, including logistics, financial management, personnel services, and health service support.
- Publication number: ADP 4-0
- Title: SUSTAINMENT (THIS ITEM IS PUBLISHED W/ BASIC INCL C1)
- Date: 08/18/2026
- Proponent: T2COM
- Status: ACTIVE
View ADP 4-0 on armypubs.army.mil
ADP 4-0 covers sustainment across unified action, joint and multinational operations, multidomain operations, and Army strategic roles. It establishes principles for sustainment activities and requires their integration and synchronization to support operations.
Applies to: The principal audience for ADP 4-0 is all Army Soldiers and civilians who provide sustainment support and those members of the Army profession who depend on and receive that support.
Topics covered
- Sustainment warfighting function
- Financial management principles
- Health service support
- Unified action
- Joint force sustainment
- Multinational operations
- Multidomain operations
- Army strategic roles
Questions and answers
What does the sustainment warfighting function provide?
The sustainment warfighting function is the related tasks and systems that provide support and services to enable freedom of action, extend operational reach, and prolong endurance (ADP 3-0). (paragraph 1-1)
What are the six financial management principles?
The six financial management principles are adherence to fiscal law, timeliness, audit readiness, consistency, accuracy, and synchronization. (paragraph 1-33)
What does adherence to fiscal law require?
Adherence to fiscal law is understanding and complying with relevant laws, regulations, and policies during the execution of fiscal resources. (paragraph 1-35)
What does the principle of proximity mean in health service support?
The principle of proximity means providing AHS support to wounded, injured, and ill Soldiers at the right time and the right place and to keep morbidity and mortality to a minimum. (paragraph 1-46)
What legal requirement applies to support in multinational operations?
Support provided and received in multinational operations must be in accordance with existing legal authorities. (paragraph 2-20)