FM 4-1 — Human Resources Support
FM 4-1 provides the fundamentals, principles, and concepts of Army human resources support doctrine across military operations.
- Publication number: FM 4-1
- Title: HUMAN RESOURCES SUPPORT
- Date: 09/15/2025
- Proponent: T2COM
- Status: ACTIVE
View FM 4-1 on armypubs.army.mil
It covers HR support at every echelon, personnel accounting, replacement and casualty operations, HR services, postal operations, and Army Bands. It also describes HR support during competition, crisis, armed conflict, and large-scale combat operations, with rules for allocating HR organizations in theater.
Applies to: FM 4-1 applies to the Active Army, Army National Guard/Army National Guard of the United States, and the United States Army Reserve unless otherwise stated.
Topics covered
- Personnel accounting and strength reporting
- Replacement operations
- Casualty operations
- Essential personnel services
- Postal operations
- Army Band operations
- Morale, Welfare, and Recreation operations
- HR support during armed conflict
Questions and answers
Who is responsible for soldier accountability during deployments?
Soldier accountability is the responsibility of commanders at all echelons during peacetime, mobilization, combat, and other types of deployments. (paragraph 3-3)
What does the individual replacement process include?
The process includes the physical reception, accounting, processing, support, reequipping, training, and delivery of military and civilian personnel including both replacement and RTD Soldiers. (paragraph 3-12)
When are Soldiers required to wear ID tags?
Soldiers are required to wear ID tags at all times while on duty in uniform unless otherwise directed by the commander. (paragraph 4-36)
Can contractor personnel serve as contracting officers representatives for postal operations?
In no case shall contractor personnel serve as CORs. (paragraph 4-105)