A 31 score on the Armed Services Vocational Aptitude Battery (ASVAB) refers to your Armed Forces Qualification Test (AFQT) percentile, which determines your eligibility to enlist. With an AFQT score of 31, you are eligible for enlistment in the U.S. Army. However, the specific jobs (Military Occupational Specialties, or MOS) available to you are determined by your line scores, which are composite scores derived from specific subsets of the ASVAB.
The most critical line score for most Army jobs is the General Technical (GT) score, calculated from your Arithmetic Reasoning (AR), Word Knowledge (WK), and Paragraph Comprehension (PC) subtests. Many desirable MOSs require a GT score of 90 or higher.
Common Army job categories potentially accessible with lower line scores (often in the 80-90 range, which may align with an AFQT of 31) include:
- Infantry (11B): The backbone of ground combat forces.
- Combat Engineer (12B): Performs construction and demolition tasks in combat environments.
- Cannon Crewmember (13B): Operates field artillery weapon systems.
- Motor Transport Operator (88M): Drives and manages wheeled vehicles to transport personnel and supplies.
Important Considerations:
- Job Availability is Dynamic: The MOSs offered to you on a given day depend on the current needs of the Army (its “quota”) and your physical qualifications.
- Retaking the ASVAB: If you want to qualify for a wider range of technical jobs (e.g., in intelligence, signal, or mechanics), you can study and retake the ASVAB to improve your scores. Your recruiter can advise on the wait time between tests.
- Your Recruiter is Key: Only your Army recruiter can access the official system, calculate your exact line scores, and provide a definitive list of jobs for which you qualify at that moment.
For context on another step in the enlistment process that involves clearances and potential retesting, you can read about Can I redo MEPS if I fail?
For an external, official resource to explore Army jobs and their required scores, visit the U.S. Army’s official ASVAB and jobs portal.