OSANABI91-201 — Weapons Safety Program Management

OSANABI91-201 governs weapons safety, explosives and missile safety, munitions handling, transportation, and mishap prevention at Osan AB.

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  • Publication number: OSANABI91-201
  • Title: WEAPONS SAFETY PROGRAM MANAGEMENT
  • Date: 2025-06-04

View OSANABI91-201 on armypubs.army.mil


The publication establishes program management and responsibilities for explosives and missile safety, including aircraft parking and explosives storage. It requires appointments, training, notifications, risk assessments, and advance routing for Tier Two operations.

Applies to: It applies to all activities and personnel assigned or attached to Osan AB.

Topics covered

  • Weapons safety program management
  • Explosives safety programs
  • Missile safety procedures
  • Additional Duty Weapons Safety Representatives
  • Explosives transportation
  • Explosive facility maintenance
  • Tier Two operations memoranda

Questions and answers

Which units must appoint an Additional Duty Weapons Safety Representative?

IAW AFI 91-202, Units that handle, maintain, store, install or remove missiles, explosives, chemical or nuclear weapons will appoint an ADWSR. (paragraph 91-201)

What qualifications and appointment requirements apply to ADWSRs?

Commanders will appoint in writing a primary, in the grade of E-5 or above and an alternate, in the grade of E-4 or above and send the letter to 51 FW/SEW. (paragraph 91-201)

How soon must ADWSRs receive training after assignment?

The weapons safety office must train ADWSRs within 30 days of being assigned ADWSR duties. (paragraph 91-201)

What must unit commanders do when explosives mishaps occur?

Immediately notify the 51 FW weapons safety office and command post when mishaps occur involving explosives or transportation of explosives. (paragraph 91-201)

What is required before maintenance or repair of explosive facilities and equipment?

Document a risk assessment, including control measures taken and brief maintenance personnel on the hazards involved and precautions needed to perform the work safely, and actions to take in the event of an accident. (paragraph 91-201)

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