Chemical, Biological, Radiological, and Nuclear specialists defend the force against the deadliest threats on and off the battlefield — the Army's first line against weapons of mass destruction.
The 74-Series is the Army's specialized force for detecting, mitigating, and defeating chemical, biological, radiological, and nuclear threats. From hazard reconnaissance to full-scale decontamination, CBRN Soldiers protect the force so it can fight.
Leading the Army's defense against WMD threats. Officers plan and coordinate detection, identification, and decontamination operations.
The experts in CBRN defense. Specialists detect, identify, and neutralize chemical, biological, and nuclear threats.
The pinnacle of enlisted CBRN leadership. 74Zs manage operations and readiness for large-scale formations.
Junior enlisted CBRN Soldiers begin their career as specialists attached to company- and battalion-level units, serving as the unit's subject matter expert on chemical, biological, radiological, and nuclear defense. Promotion to SPC/E-4 typically occurs within 2-3 years and brings increased responsibility for equipment accountability and training.
This is the time to pursue hazmat certifications, attend additional schools, and build technical expertise. CBRN Soldiers often serve as the sole CBRN representative in their unit, requiring independence and initiative from day one.
CBRN NCOs lead decontamination teams, reconnaissance sections, and smoke platoon elements. Sergeants (E-5) lead teams of 3-4 Soldiers in CBRN operations, while Staff Sergeants (E-6) serve as section sergeants and CBRN NCOICs at battalion level. This is where CBRN leaders develop the technical depth and leadership skills that define the career field.
Completion of BLC (Basic Leader Course) is required for E-5, and ALC (Advanced Leader Course) for E-6. Pursuing Hazmat Incident Commander certification and advanced CBRN courses significantly improves promotion potential.
Senior CBRN NCOs represent the most experienced and technically proficient leaders in the field. Sergeants First Class (E-7) serve as Platoon Sergeants for CBRN platoons, Master Sergeants/First Sergeants (E-8) lead at company level or serve as BDE CBRN NCOICs, and Sergeants Major (E-9) serve as the senior CBRN enlisted advisor at division and higher.
These positions are highly competitive and board-selected. A record of technical excellence, advanced certifications, instructor duty, and consistent top-block evaluations are essential for advancement.
Experienced CBRN NCOs can pursue the Warrant Officer track to become the Army's premier CBRN technical experts. CBRN Warrant Officers serve as technical advisors to commanders, leading complex CBRN operations and managing advanced detection and analytical capabilities that exceed the scope of enlisted or commissioned officer roles.
The Warrant Officer path allows CBRN professionals to remain technically focused throughout their career without transitioning to general leadership positions. Prior enlisted experience in CBRN reconnaissance, WMD-CST, or technical escort is highly valued.
| Installation | Location | Unit / Mission | Type |
|---|---|---|---|
| Fort Leonard Wood | MO | CBRN School / Maneuver Support CoE | TRADOC |
| Fort Liberty | NC | 82nd Airborne / XVIII ABC | FORSCOM |
| Fort Campbell | KY/TN | 101st Airborne (Air Assault) | FORSCOM |
| Fort Carson | CO | 4th Infantry Division | FORSCOM |
| Fort Stewart | GA | 3rd Infantry Division | FORSCOM |
| Dugway Proving Ground | UT | CBRN Testing & Evaluation | Testing |
| Aberdeen Proving Ground | MD | DEVCOM CBC / CBRN Research | R&D |
| OCONUS | Germany / Korea / Japan | Division & Corps CBRN Elements | OCONUS |
CBRN Soldiers serve at most Army installations as unit CBRN specialists. Specialized assignments include WMD-CST teams, CBRN reconnaissance companies, and research/testing installations. Duty station assignment depends on unit needs and soldier qualifications.
From hazard detection in contested environments to consequence management on the homefront, CBRN Soldiers stand ready to defend the force against the most dangerous threats on Earth.
Explore Training CoursesCBRN stands for Chemical, Biological, Radiological, and Nuclear. 74D Soldiers are the Army's experts on detecting, identifying, and defeating these threats — from nerve agents to dirty bombs to biological weapons.
The gas chamber is just the beginning. CBRN Soldiers train extensively in MOPP gear and live-agent environments. You'll build confidence fast — and you'll be the one coaching everyone else through it.
CBRN Soldiers earn Hazmat Technician, Hazmat Incident Commander, and OSHA certifications that transfer directly to civilian careers in emergency management and hazardous materials response.
CBRN Soldiers operate smoke generation systems like the M56 Coyote to provide battlefield obscuration. Smoke ops protect friendly forces during movement, breaching operations, and river crossings.
WMD-Civil Support Teams and CBRN reconnaissance units operate at the cutting edge of threat detection. These elite assignments put CBRN Soldiers on the front line of national defense.
CBRN skills translate directly to civilian HAZMAT, emergency management, EPA, FEMA, and DHS careers. Certifications earned in service give you a head start in a high-demand field.
CBRN is a technically demanding career field that produces specialists who are critical to every unit in the Army. If you want to master hazard detection, protect the force from WMD threats, and earn certifications that translate directly to high-demand civilian careers, the 74-Series is the path. Study hard, master the equipment, and be the expert your unit needs.
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