Watch ST first.
Army MOS guide
74D CBRN Specialist ASVAB score requirements
Score target and study focus for Army 74D.
74D
Army MOS score brief
CBRN Specialist
ASVAB line score targetST 100+
Supports chemical, biological, radiological, and nuclear defense, detection, decontamination, and readiness.
Good fit if you like science, protective equipment, emergency-readiness procedures, and detailed safety work.
Hazmat response, emergency management support, industrial safety, public safety, and environmental protection.
Study first
Focus these areas
- Build ST with science fundamentals, verbal expression, mechanical concepts, and math knowledge.
- Review chemistry, biology, safety vocabulary, and equipment-style questions.
Daily work
What you may do
- Support CBRN detection, protection, decontamination, training, and equipment readiness.
- Follow safety procedures and help units prepare for hazardous-material or contamination risks.
74D Army MOS FAQ
Common CBRN Specialist ASVAB questions
What ASVAB score do you need for 74D CBRN Specialist?
ST 100+ is the source-backed planning target shown on this MeritMarch guide. Treat it as study guidance, not an enlistment promise, because Army requirements, openings, waivers, medical qualification, and recruiter guidance can change.
What does a 74D CBRN Specialist do?
Supports chemical, biological, radiological, and nuclear defense, detection, decontamination, and readiness.
Which ASVAB sections should I study for 74D?
Start with the score areas tied to ST 100+: General Science, Word Knowledge, Paragraph Comprehension, Mechanical Comprehension, Math Knowledge. If your AFQT is not stable yet, also keep Arithmetic Reasoning, Math Knowledge, Word Knowledge, and Paragraph Comprehension in the plan.
Is 74D guaranteed if I meet the score target?
No. ASVAB scores are only part of Army job access. Current openings, contract options, background checks, medical standards, citizenship rules, waivers, and Army needs all affect whether a MOS is available.
Where did MeritMarch get the 74D score target?
This page uses ST 100+ from Army enlisted MOS specifications, Chapter 10C, 10-74D, reviewed April 30, 2026. It is still shown as planning guidance because official requirements and openings can change.
Practice and pass with ease
Subtest-based
2500+ questions & flashcards
Mobile & desktop
Build confidence
Courses, questions, flashcards, and AI help in one place.
10 ASVAB subject courses
AI Study Buddy
2,000+ practice questions
1,000+ flashcards
Sources and official confirmation
Source checked April 30, 2026: Army enlisted MOS specifications, Chapter 10C, 10-74D. Current Army job access still depends on Army policy, openings, medical qualification, background screening, waivers, and recruiter guidance.
More context reviewed April 30, 2026: GoArmy ASVAB entrance test, Official ASVAB military-jobs composites, Army enlisted MOS specifications, Chapter 10C, MeritMarch Army jobs based on ASVAB scores guide.