ATP 4-90 — Brigade Support Battalion
ATP 4-90 governs support battalion operations in maneuver brigades, multifunctional support brigades, and the multi-domain task force.
- Publication number: ATP 4-90
- Title: BRIGADE SUPPORT BATTALION
- Date: 01/26/2026
- Proponent: T2COM
- Status: ACTIVE
View ATP 4-90 on armypubs.army.mil
ATP 4-90 covers brigade support battalion roles, organization, command and control, brigade support areas, sustainment planning, distribution, resupply, and echeloned sustainment. It also describes light support battalions and the brigade support battalion mission-essential task list, while requiring compliance with applicable law and the law of armed conflict.
Applies to: ATP 4-90 applies to the Active Army, Army National Guard/Army National Guard of the United States, and the United States Army Reserve unless otherwise noted.
Topics covered
- Brigade support battalion organization
- Light support battalions
- Brigade support areas
- Distribution management
- Echeloned sustainment
- Mission-essential task lists
Questions and answers
What sustainment does a brigade support battalion provide?
The role of the BSB is to provide sustainment support (logistics and medical) to its supported brigade. (paragraph 1-3)
What functions does the brigade support battalion perform?
The BSB performs the following functions: distribution management and operations, transportation, supply support, field maintenance, and Role 2 medical care. (paragraph 1-5)
Who gives the brigade support battalion its orders?
In all cases the BSB receives its orders from the supported brigade. (paragraph 1-7)
What is the BSB commander responsible for across the brigade area?
The BSB commander is the brigade's senior logistician and is responsible for sustainment synchronization and execution across the brigade area of operations. (paragraph 2-3)
Who determines the composition and method of resupply?
Commanders determine the composition, frequency, and method of resupply to best support operations. (paragraph 3-42)