MEPS — the Military Entrance Processing Station — is where your military career officially begins or ends. Every branch of the U.S. military routes enlistees through MEPS. Whether you're joining the Army, Navy, Air Force, Marines, or Coast Guard, you'll face the same core requirements: medical evaluation, aptitude testing, background screening, and administrative processing.
The requirements aren't about being an elite athlete. Most of them are about meeting a baseline — no disqualifying medical conditions, a minimum ASVAB score, no serious legal history, and a clean drug test. That said, knowing what's required before you show up isn't just helpful. It's the difference between clearing MEPS in one day and getting sent home with an open question that takes months to resolve.
The MEPS medical exam is comprehensive. You'll go through vision and hearing tests, blood pressure and urinalysis, a physical examination of your musculoskeletal system, a dental screening, and blood draws for HIV and other conditions. The whole medical portion typically takes the better part of a morning.
What gets people disqualified medically? The most common issues include:
None of these are automatic permanent bars. Many can be waived — but waivers take time and documentation. If you know you have a potential medical issue, discuss it with your recruiter before MEPS, not after. The more documentation you bring (diagnosis records, surgical notes, physician letters), the smoother the waiver process goes.
The ASVAB is typically taken before your MEPS visit, though some candidates take the computerized ASVAB at the MEPS station itself. What matters for basic enlistment is your AFQT score — Armed Forces Qualification Test — which is derived from four ASVAB subtests: Arithmetic Reasoning, Mathematics Knowledge, Paragraph Comprehension, and Word Knowledge.
Minimum AFQT scores by branch:
These are floors, not targets. A higher AFQT unlocks better job options and, in some branches, enlistment bonuses. If your score is borderline, retesting is possible after a waiting period — but preparation before the first attempt is far more efficient than retesting.
MEPS includes a thorough background check. Minor traffic violations typically aren't a problem. More serious issues — felony convictions, drug-related charges, serious misdemeanors, or a pattern of criminal activity — can result in disqualification or require a conduct waiver.
Be completely honest during your background interview. MEPS staff cross-reference your answers against official records. Discrepancies — even ones that seem small — are flagged. Omitting an arrest you think was expunged is a much bigger problem than disclosing it upfront.
MEPS drug testing is urinalysis-based and screens for a standard panel including marijuana, cocaine, opioids, amphetamines, and PCP. A positive result is disqualifying — full stop. There is no legal-state exception. Federal military standards apply regardless of state law.
If you've used marijuana recently, you need to wait. Detection windows vary — typically 3 to 30 days for occasional use, longer for heavy or daily users. Don't guess. Be clean before you go to MEPS.
You must be at least 17 (with parental consent) or 18 to enlist. Maximum ages vary by branch — generally 35 for Army, 39 for Navy, 28 for Marines. Age waivers above the maximum are rare and branch-dependent.
You must be a U.S. citizen or permanent resident (green card holder) to enlist. Non-citizens with legal permanent residence can enlist in most branches, though some MOS and security clearances require citizenship.
Contrary to what many applicants expect, you don't take a fitness test at MEPS. The physical exam checks your medical fitness — not your cardio or strength. That said, you'll have to meet your branch's physical fitness test requirements after you enlist, usually in basic training. Start building your fitness before shipping out. Don't show up to basic unable to run two miles.
Bring everything and bring extra copies:
Wear comfortable, loose clothing. The MEPS dress code doesn't require anything formal — but avoid clothing with offensive graphics. Arrive rested. You may be there from early morning through mid-afternoon.
If you're staying overnight at a MEPS hotel, use that time to review your paperwork, get a solid night of sleep, and mentally prepare for a long day of waiting punctuated by short bursts of activity.
Understanding MEPS disqualifications ahead of time gives you time to address what you can — and set realistic expectations about what can be waived. Walking in informed is the best advantage you have on processing day.
Most people who struggle at MEPS did one of two things: they didn't know the requirements beforehand, or they knew them and didn't prepare. Don't be either of those people.
Start with your medical history. Pull your records. Know what diagnoses and treatments are in there before a MEPS physician sees them. If something is potentially disqualifying, address it now — bring the documentation, talk to your recruiter, and understand your waiver options before processing day.
On the ASVAB side, your AFQT score is trainable. Practice consistently in the four sections that make up the AFQT — Arithmetic Reasoning, Mathematics Knowledge, Word Knowledge, and Paragraph Comprehension — for at least four to six weeks before your test. A score bump of 5 to 10 points is realistic with disciplined prep. That bump could open MOS options that weren't available at a lower score.
Walk into MEPS knowing what to expect. The MEPS process is long and involves a lot of waiting. Stay calm, stay honest, and follow instructions from MEPS staff. Candidates who know the process rarely get caught off guard. Those who show up blind often do.