OAR exam-day guide
OAR · Prepare for the day ahead.
Your checklist
Government-issued photo ID
Bring the exact ID form your testing office told you to bring (driver's license, passport, or military ID are the usual options, but the accepted list varies by site). Confirm the required form with your recruiter or test control officer before test day - do not assume.
Appointment confirmation and point-of-contact
Carry the confirmation email/letter and your recruiter's or test control officer's phone number so you can call immediately if you are delayed or the building is hard to find.
Exact address, building, room, and arrival time
Recruiting stations, NROTC units, and testing centers often sit inside larger complexes with controlled access. Confirm the gate, building, and check-in desk in advance and plan to arrive well before your slot.
Transportation and parking plan
Know where you will park or which entrance to use, and identify a backup way to get there. Late arrival can void your appointment, so build in a buffer for traffic and security screening.
Dress appropriately
Business casual or neat, comfortable clothing is a safe default. Ask your recruiter if the site has a specific dress expectation.
Sleep, food, and hydration plan
This is a timed, computer-based battery. Protect the two nights before with consistent sleep, and eat a normal meal so you are not distracted by hunger during the math and reading sections.
Calculator policy - confirm in advance
Do not assume a calculator or scratch-paper calculator will be allowed. Ask your recruiter what is permitted; if none is allowed, practice all arithmetic and estimation by hand before test day.
Scratch paper and pencil policy - confirm in advance
Many sites supply scratch material and collect it afterward; some do not. Confirm with the provider so you know whether to expect it and can practice accordingly. Never bring your own paper or notes into the testing room.
Phone and personal items plan
Expect to surrender or store your phone, watch, and bag during testing. Leave anything you do not need at home or in your vehicle.
Medication and medical needs disclosed
If you take prescription medication or need an accommodation, tell your recruiter or test control officer ahead of time rather than on the morning of the exam.
Review the subtest structure and time limits
The OAR covers Math Skills, Reading Comprehension, and Mechanical Comprehension. Look up the current section order and per-section time limits with your recruiter, since formats and timing change - treat any number you saw online as unverified.
Pacing plan for a computer-adaptive test
On an adaptive test each question is selected based on your prior answers, so you cannot return to earlier questions. Plan to answer every question, keep a steady pace, and not stall on any single item.
Plan the day
Confirm logistics: call or message your recruiter to verify the address, arrival time, required ID, calculator and scratch-paper policy, and what to do with your phone. Resolve any open questions now, not on test morning.
Take one final full-length timed practice set across the three OAR sections under real conditions (no calculator if the site does not permit one). Review only your error patterns afterward - no new content this late.
Lock in your sleep schedule: wake and sleep at the times you will use on test day so the morning feels routine.
Prepare your bag: ID, confirmation, contact numbers, directions, and any permitted comfort items. Lay it out by the door.
Do light review only: formula sheets, a few mechanical concepts (levers, gears, pressure, circuits), and one or two reading passages for warm-up. Stop studying by early evening.
Reconfirm the appointment one last time and check traffic/weather for your route. Set two alarms and a backup alarm.
Eat a normal dinner, avoid heavy alcohol, and get a full night's sleep. Cramming the night before costs more in focus than it gains in knowledge.
Eat a real breakfast, hydrate moderately, and avoid excessive caffeine if you are caffeine-sensitive.
Arrive early - aim well before your appointment so security screening, parking, and check-in do not eat into your buffer. Call your point of contact immediately if anything goes wrong.
Do a five-minute mental warm-up (a few arithmetic drills, one reading passage) rather than a full practice test.
Read the on-screen instructions for each section carefully and note the time limit before you start answering. Confirm from the instructions whether there is a penalty for guessing, and answer accordingly.
Math Skills: work in order, estimate before computing, and move on if a problem stalls you. Use scratch paper methodically and label your work.
Reading Comprehension: read the passage for the author's main point first, then evaluate each option against what the passage actually says, not what seems generally true.
Mechanical Comprehension: identify the principle being tested (leverage, mechanical advantage, fluid pressure, simple circuits, basic kinematics) before doing any math.
If a break is offered, take it, stand up, and reset. Do not spend the break reviewing material or talking about questions with anyone.
Ask your point of contact how and when your score will be reported and what the retest policy is, in writing if possible. Note the date so you can plan a retake if needed.
Rules to check
Bring the specific government-issued photo ID your testing office requires, and be ready for it to be checked at check-in. If you do not have an acceptable ID, you may be turned away - verify the accepted forms with the provider beforehand.
Do not bring notes, study sheets, or any reference material into the testing room. Only materials explicitly issued to you by the test administrator may be used.
Mobile phones, smartwatches, and other devices must be off and stored as the administrator directs. Any device use during testing is typically treated as a serious integrity violation.
Follow the administrator's instructions on breaks and on leaving the room; do not attempt to leave the testing area mid-section without permission. Confirm the specific break policy with the provider, as it varies by site.
Test integrity is absolute: do not discuss, record, or share exam content with anyone at any time. Attempting to reproduce questions is grounds for invalidation.
Understand how the score is used: the OAR is a battery of subtests reported on a standardized scale, and your program's selection board sees the section scores. Confirm the current scoring scale and how your program uses it with your recruiter rather than relying on secondhand numbers.
Ask about the retest policy (waiting period and attempt limits) in advance and confirm it in writing with your recruiter or test control officer; do not rely on forum posts.
If you are running late, call your point of contact immediately rather than assuming you will be admitted. Late arrival may result in losing your slot, and the rescheduling rules vary by site.