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// Officer Designator · O-1 to O-10 · NATO OF-1 to OF-9

EXPLOSIVE ORDNANCE DISPOSAL OFFICER (1140)

The URL community that defuses land, underwater, and improvised explosive ordnance for the joint force.

EOD insignia — silver bomb device with lightning bolts and laurel wreath
Insignia
Designator
1140
Abbreviation
EOD
Community
Unrestricted Line
Paygrade Range
O-1 to O-10
NATO Range
OF-1 to OF-9
Category
Officer Designator

OVERVIEW

The 1140 Explosive Ordnance Disposal (EOD) Officer designator identifies Unrestricted Line officers in the U.S. Navy who lead Navy EOD platoons in the rendering-safe and disposal of conventional, chemical, biological, nuclear, and improvised explosive ordnance. Navy EOD is one of only four U.S. service EOD communities and is the lead service for underwater EOD and very-shallow-water mine countermeasures. EOD officers and Sailors deploy worldwide with carrier strike groups, expeditionary strike groups, Naval Special Warfare units, and joint task forces.

EOD officers complete one of the longest training pipelines in the Navy — over a year of dive school, parachute school, and the joint Naval School EOD at Eglin Air Force Base, Florida. Successful candidates earn the silver "Crab" insignia (Master EOD Technician at the senior level) and join one of three EOD Mobile Units (EODMU) on the East and West Coasts.

RESPONSIBILITIES

  • Command an EOD platoon (typically 5 personnel) on combat or expeditionary deployment
  • Lead render-safe procedures on conventional and improvised explosive ordnance
  • Plan and execute underwater mine countermeasures and very-shallow-water clearance
  • Integrate with Naval Special Warfare, expeditionary strike groups, and joint task forces

HISTORY

The Navy EOD community traces its lineage to World War II underwater demolition and bomb-disposal teams. The community was formally established as a separate officer designator in the 1970s alongside the rise of expeditionary EOD operations during the Vietnam era. Following the Iraq and Afghanistan conflicts, EOD became one of the most-deployed Navy communities, performing thousands of render-safe procedures on improvised explosive devices.

The community shares its EOD basic-school training with Air Force, Army, and Marine Corps EOD personnel at the joint Naval School EOD on Eglin Air Force Base, FL — the only EOD school in the U.S. military.

COMMISSIONING SOURCES

  • USNA
  • NROTC
  • OCS

TRAINING PIPELINE

  1. 1. EOD Diving Course (NDSTC)~9 weeks
    Panama City, FL
    Open-circuit and closed-circuit (MK-16) combat diving qualification.
  2. 2. Naval School EOD~9 months
    Eglin AFB, FL
    Joint EOD basic school — air ordnance, underwater ordnance, ground ordnance, IED, and weapons of mass destruction phases.
  3. 3. Basic Airborne Course~3 weeks
    Fort Benning, GA
    Static-line parachute qualification.

TYPICAL CAREER PATH

  1. O-1
    Dive School + Naval School EOD
    Approximately 13 months of pipeline training before reporting to first EOD Mobile Unit.
  2. O-2/O-3
    Platoon Commander
    Lead a 5-person EOD platoon through workup and overseas deployment.
  3. O-4
    Company Commander / Department Head
    Command of a company within an EODMU, or department-head tour at Group staff.
  4. O-5
    EOD Mobile Unit Commanding Officer
    Command of an EOD Mobile Unit on the East or West Coast.
  5. O-6
    Group Commander
    Command of EOD Group ONE or TWO.

RELATED DESIGNATORS

RELATED BASES

How to address
Same as the underlying officer rank — e.g., "Lieutenant Smith" — with community addressed as "EOD" in writing.
Prerequisites
  • Pass the EOD/Diving Physical Screening Test
  • Successful completion of Naval Diving and Salvage Training Center (NDSTC) basic dive course
  • Successful completion of Naval School EOD at Eglin AFB
  • Maintain Top Secret clearance and EOD physical readiness standards
Common assignments
  • Platoon Commander, EOD Mobile Unit (EODMU) on the East or West Coast
  • Expeditionary deployment with a carrier strike group or special-operations task force
  • Mobile Diving and Salvage Unit (MDSU) integration tour
  • Joint EOD school instructor at Eglin AFB

FREQUENTLY ASKED QUESTIONS

The 1140 designator identifies an Unrestricted Line officer in the Explosive Ordnance Disposal community — a Navy EOD officer.

The combined EOD pipeline — Dive School, Naval School EOD, and Basic Airborne Course — runs approximately 13 months before an officer reports to a first EOD Mobile Unit.

All four services train at the same joint EOD school at Eglin AFB. Navy EOD is the lead service for underwater EOD, very-shallow-water mine countermeasures, and EOD support to Naval Special Warfare.

SOURCES

Last updated 2026-05-02
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