Warrant Officer Prerequisites and Duty Description

890A - Ammunition Warrant Officer

Directs and coordinates the implementation of the following activities: Accountability, receipt, storage, issue, inspection, maintenance and demilitarization of conventional ammunition, components, residue and inert training ammunition devices. Investigates and reports conventional ammunition accidents, failures, or malfunctions. Supervises and manages the Standard Army Ammunition System (SAAS) at all levels. Prepares and/or reviews ammunition storage waivers. Prepares, reviews and /or implements the following operational plans in ammunition storage areas; Firefighting, emergency destruction, physical security, explosive safety and transportation flow. Performs other company grade officer level duties as required/essential to the unit mission. The Ammunition Warrant Officer is a self-aware and adaptive technical expert, combat leader, trainer and advisor.

Minimum Prerequisites:

NCOERs: Must submit copies of ALL NCOERs. The NCOERs must reflect outstanding and exceptional duty performance from the Rater and outstanding and exceptional potential from the Senior Rater.

Rater’s bullet comments reflecting performance:


Senior Rater's bullet comments reflecting:


Letters of Recommendation (LOR’s): LOR must be from a Senior Warrant Officer (CW3-CW5) holding MOS 890A. The LOR must come from a Senior Warrant Officer within your immediate organization, chain of command or Installation. If a Senior Warrant Officer in not assigned to your organization, immediate chain of command or Installation:


NOTE 1: Experience defined: Specific (operations/logistic support) experience includes any position involving direct contact with equipment/commodity/electronics/ repair, retail or wholesale munitions operations and/or munitions management.

NOTE 2: Reserve Components civilian experience related to their MOS will be taken into consideration. Evaluation reports documenting experience must describe specific MOS related positions, duties, and responsibilities performed and must be commensurate with the rank of the soldier.

NOTE 3: Online courses available to enhance technical experience. (not required)

Please contact the proponent POCs below for any questions regarding qualifications. Address all other inquiries to Warrant Officer Recruiting at usarmy.knox.usarec.mbx.9sbn-wo-team-questions@mail.mil

POC: CW4 Amado Mena Jr. (Active Component)
E-Mail: amado.mena3.mil@mail.mil
DSN: 539-7371
COM: 804-765-7371
FAX: 804-765-7337

If you are a member of the Army Reserves (regardless of branch) and who wishes to apply for position as a Warrant Officer, for more information on the Army Reserve Warrant Officer Accession program please visit:


POC: CW5 Ronald Diehl (Reserve Components)
E-mail: ronald.p.diehl2.mil@mail.mil
DSN: 539-7383
COM: 804-765-7383


If you are a member of the Army National Guard talk to your State, Territory or the District of Columbia Warrant Officer Strength Manager (WOSM) to see if you meet the qualifications and how to complete a Predetermination Packet. To speak to a Warrant Officer Strength manager please visit:


POC: CW5 James Williams (Army National Guard)
E-Mail: james.w.williams4.mil@mail.mil
DSN: 687-1155
COM: 804-734-1155


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