DAFI91-401 — Directed Energy System Safety

DAFI91-401 governs directed energy system safety certification and establishes guidance for a directed energy safety program.

Search DAFI91-401

  • Publication number: DAFI91-401
  • Title: DIRECTED ENERGY SYSTEM SAFETY
  • Date: 2024-04-18

View DAFI91-401 on armypubs.army.mil


DAFI91-401 covers safety verification and certification for new or modified directed energy systems. It includes safety board procedures, laser safety working group processes, and requirements for safety studies and hazard classification.

Topics covered

  • Directed energy system safety certification
  • Safety verification for directed energy systems
  • Directed energy safety programs
  • Directed energy weapons safety boards
  • Laser System Safety Review Board certification
  • Directed energy system hazard classification

Questions and answers

What is a directed energy weapon under DAFI91-401?

Directed Energy Weapon—A device that uses directed energy and is designed to kill, injure, disable or temporarily incapacitate people or destroy, damage, disable or temporarily incapacitate property or materiel.

What must be provided at a minimum for a laser weapon system?

At a minimum, A2.1.1, A2.1.2, and A2.1.3 must be provided for a laser weapon system.

How may studies be distributed when required?

If required per paragraph 3.5, studies may be distributed by hard copy, disk (CD/DVD), or e-mail.

How must proprietary study information be handled when sent electronically?

If the information in the study is manufacturer, or contractor, or government proprietary in nature, be sure to mark it as such and if sent electronically, encrypt it or passwordprotect the information/study.

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