51FWI31-117 — Training Marker Management

51FWI31-117 governs simulated munitions and dye-marking cartridge use during controlled force-on-force and base defense training.

Search 51FWI31-117

  • Publication number: 51FWI31-117
  • Title: TRAINING MARKER MANAGEMENT
  • Date: 2026-02-10

View 51FWI31-117 on armypubs.army.mil

It covers training zones, safety, weapon conversion kits, dye markers, and responsibilities for training events on Osan Air Base. It requires approved ammunition and modified weapons, documented training, controlled access, and compliance with the most restrictive safety guidance.

Applies to: This instruction applies to all 51 FW personnel on Osan AB, Republic of Korea.

Topics covered

  • Dye-marking cartridges
  • Training areas
  • Safety zones
  • Weapon conversion kits
  • Dye markers
  • Force-on-force training
  • Range safety
  • Approved training sites

Questions and answers

What zones must training areas contain?

Training areas will be comprised of a minimum of three distinctive zones: Unsafe Zone, Semi-Safe Zone, and Safe Zone. (paragraph 4)

What protective equipment is required in the Unsafe Zone?

Personnel in this area are required to wear all mandatory personal protective equipment (PPE) at all times, until the range is certified ‘Cold’. (paragraph 4)

Do personnel using dye-marking cartridges need to be qualified on the weapon?

Personnel using dye-marking cartridges do not have to be qualified on the weapon used during training. (paragraph 4)

What ammunition and weapons are authorized in the training area?

Only approved marking ammunition and properly modified weapons are authorized for use in the training area.

What must happen to cartridges that jam in a weapon?

Do not reuse cartridges that have been jammed in a weapon.

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