- AGI is an FAA ground instructor certificate earned by passing a 100-question knowledge test, no flying required.
- The test costs $175 plus tax, gives 2 hours 30 minutes, and requires a 70% score to pass.
- FAA 2025 data shows a 97.29% pass rate across 2,694 AGI tests taken.
- AGI privileges cover 16 knowledge domains mirroring the commercial pilot knowledge areas, minus instrument subjects.
What Is AGI?
AGI stands for Advanced Ground Instructor, an FAA-issued ground instructor certificate authorized under 14 CFR Part 61. It permits a certificate holder to provide ground training and sign knowledge-test recommendations for pilots pursuing private, commercial, and other certificates and ratings - everything except instrument-rating subjects, which fall outside AGI's scope. If you've seen the term used loosely elsewhere online, it's worth noting that in aviation, AGI has nothing to do with "artificial general intelligence." This site, AGI Meaning and What Does AGI Stand For? explain, is entirely about the FAA credential.
Unlike most FAA certificates, AGI requires no pilot certificate, no medical certificate, no flight hours, and no practical (checkride) test. The entire pathway runs through a single FAA knowledge exam administered by PSI. Pass that exam, meet a short list of eligibility items, and the certificate is yours - permanently, with no expiration date, though exercising its privileges has its own currency rule (more on that below).
What the AGI Certificate Lets You Do
The AGI certificate's authority is broader than the entry-level Basic Ground Instructor (BGI) certificate. Where BGI is limited to private-pilot-level and recreational-pilot-level ground training, AGI extends all the way up through the commercial pilot knowledge areas. Specifically, an AGI holder can:
- Provide ground instruction for private, commercial, and lighter-than-air ratings under Part 61.
- Sign off endorsements allowing students to sit for the associated FAA knowledge tests.
- Teach the knowledge areas referenced in 14 CFR 61.97, 61.105, 61.155, and 61.309 - the regulatory backbone behind AGI's scope.
- Support flight schools, aviation ground schools, and independent instructors who need someone qualified to teach and endorse ground subjects without holding a flight instructor certificate.
The one carve-out is instrument-rating ground subjects, which remain outside AGI privileges. If you plan to teach instrument students, you'd need an Instrument Ground Instructor (IGI) certificate or a flight instructor certificate with instrument privileges. For a full rundown of eligibility rules and what the certificate does and doesn't authorize, see AGI Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Who Actually Earns and Uses an AGI
AGI attracts a mix of people, and understanding who they are helps explain why the certificate exists. Common holders include:
- Aspiring flight instructors who earn AGI first to build ground-teaching credibility and experience before completing a CFI practical test.
- Non-flying aviation professionals - dispatchers, aviation educators, or ground school operators - who want FAA authority to teach and endorse without becoming pilots themselves.
- Flight school staff who supplement in-house instructor pools, teaching regulations, weather, and systems classes so CFIs can focus on flight time.
- Career-focused instructors stacking credentials to qualify for ground school teaching roles; see AGI Jobs for a look at where this certificate opens doors.
Because no flight experience is required, AGI is one of the few FAA credentials accessible to someone who has never sat in a cockpit as pilot in command - as long as they can master the knowledge content well enough to teach it.
How the AGI Knowledge Test Works
The AGI knowledge test is administered by the FAA through PSI testing centers. The mechanics are straightforward but worth knowing in detail before you schedule a seat:
- Format: 100 scored multiple-choice questions, with the possibility of additional unscored validation questions mixed in that you can't distinguish from scored ones.
- Time allowed: 2 hours 30 minutes.
- Passing score: 70%. See AGI Passing Score 2026: Exactly What You Need to Pass for how scoring is calculated and reported.
- Fee: $175 plus applicable tax, paid to PSI at scheduling.
- Minimum age to test: 16. You can sit for the exam before you're old enough to hold the certificate.
- Endorsement: No instructor sign-off is required for an initial attempt - you can register and test without a training provider's endorsement.
Certificate issuance itself requires additional items beyond passing the knowledge test: you must be at least 18, demonstrate English proficiency, and pass the separate Fundamentals of Instructing (FOI) knowledge test unless you qualify for an exemption. No pilot certificate, medical certificate, flight experience, or practical test is required at any point in the process.
Key Takeaway
You can take the AGI knowledge test at 16 without an endorsement, but you cannot hold the certificate until 18, and you'll also need to clear the Fundamentals of Instructing test first.
FAA 2025 statistics report a 97.29% pass rate across 2,694 AGI tests - a strong number, but one that reflects candidates who prepared specifically for AGI's content, not general aviation knowledge. For a deeper breakdown of what that figure means and doesn't mean, read AGI Pass Rate 2026: What the Data Shows.
The 16 AGI Exam Domains
AGI's knowledge base isn't arbitrary - it reproduces the commercial pilot knowledge areas listed in 14 CFR 61.125(b), plus material drawn from related sections covering private pilot, recreational pilot, and lighter-than-air knowledge requirements. That's why the exam feels comprehensive: it's testing whether you can teach commercial-level ground subjects, not just recite them.
Domain 1-2: Regulations and Accident Reporting
Covers applicable Federal Aviation Regulations tied to commercial pilot privileges, limitations, and flight operations, plus NTSB accident reporting requirements.
- Know reporting timeframes and thresholds, not just that reporting exists
Domain 3-8: Aerodynamics, Weather, and Performance
Basic aerodynamics and principles of flight, meteorology (including windshear and critical weather recognition), safe and efficient aircraft operation, weight and balance computations, performance chart interpretation, and the consequences of exceeding performance limitations.
- Practice reading performance and weight-and-balance charts under time pressure
Domain 9-15: Navigation, Systems, and Operations
Aeronautical chart and magnetic compass use for pilotage and dead reckoning, air navigation facilities, aeronautical decision making, aircraft systems principles, maneuvers and emergency procedures, night and high-altitude operations, and National Airspace System procedures.
- This block carries the heaviest question density on most exam versions
Domain 16: Lighter-Than-Air Training
Procedures for flight and ground training specific to lighter-than-air ratings - a domain that surprises candidates who assume AGI is airplane-only.
- Don't skip this domain just because it seems niche
Sixteen domains sounds like a lot to juggle in one sitting, and it is. Each one deserves individual attention rather than a single blended review pass. For question-by-question breakdowns of every domain with example concepts and common traps, see AGI Exam Domains 2026: Complete Guide to All 16 Content Areas.
Keeping AGI Privileges Current
The AGI certificate itself never expires - once issued, it's yours for life. But that permanence is misleading if you're not actively teaching. Exercising AGI privileges requires one of the following within the preceding 12 calendar months:
- Qualifying instructional activity performed as a ground instructor, or
- Completion of an approved refresher course, or
- A proficiency endorsement confirming continued competence.
Miss all three within a rolling 12-month window, and your certificate is still valid on paper, but you're not legally authorized to use it until you satisfy one of these conditions again. This is a common blind spot for instructors who step away from teaching for a year or more and assume their "permanent" certificate covers them regardless.
AGI vs. Other Ground Instructor Certificates
AGI sits in the middle of the ground instructor hierarchy. Comparing it against the more limited Basic Ground Instructor (BGI) and the specialized Instrument Ground Instructor (IGI) clarifies why most serious ground school candidates choose AGI over BGI.
| Certificate | Teaching Scope | Knowledge Test Length |
|---|---|---|
| Basic Ground Instructor (BGI) | Private and recreational pilot level only | Shorter, narrower content |
| Advanced Ground Instructor (AGI) | Private through commercial and lighter-than-air; excludes instrument subjects | 100 scored questions, 2 hrs 30 min |
| Instrument Ground Instructor (IGI) | Instrument rating ground subjects specifically | Separate, instrument-focused exam |
Many instructors eventually hold both AGI and IGI to cover the full spectrum of ground training without gaps. If you're weighing whether AGI is worth pursuing given the fee, time investment, and currency obligations, Is the AGI Certification Worth It? Complete ROI Analysis 2026 walks through the trade-offs in detail, and AGI Certification Cost 2026: Complete Pricing Breakdown itemizes every dollar involved beyond the $175 test fee.
Mapping a Study Plan to the Domains
Because AGI's 16 domains vary wildly in density - some are single-topic, others (like the navigation and systems block) span multiple subject areas - a flat, one-size-fits-all study calendar tends to underserve the heavier domains. A more realistic approach allocates study time by domain weight rather than by equal days per topic.
Regulations, Aerodynamics, Weather
- Drill Domain 1 regulatory citations and Domain 2 NTSB reporting thresholds
- Build a working model of Domain 3 aerodynamics and Domain 4 weather hazards
Performance and Computation
- Practice weight and balance problems (Domain 6) and performance charts (Domain 7) until calculations become routine
- Review limitation-exceedance scenarios in Domain 8
Navigation and Systems
- Cover Domains 9-12: charts, compass navigation, air navigation facilities, and aircraft systems
- Spend extra time here - this cluster is the densest on the exam
Operations, Airspace, and Lighter-Than-Air
- Finish Domains 13-16, including night operations, airspace procedures, and lighter-than-air training
- Run full-length timed practice exams to simulate the 2 hour 30 minute window
For a more granular, first-attempt-focused version of this plan with specific question drills, AGI Study Guide 2026: How to Pass on Your First Attempt goes deeper, and if you're unsure how demanding this test really is compared to other FAA knowledge exams, How Hard Is the AGI Exam? Complete Difficulty Guide 2026 breaks down the difficulty realistically. Running timed practice sessions on our AGI practice test platform before test day is one of the most reliable ways to confirm you're pacing correctly across all 16 domains.
FAQ
No. AGI requires no pilot certificate, medical certificate, flight experience, or practical test. It is earned entirely through the knowledge test plus the eligibility items listed by the FAA.
Yes, applicants may test at age 16 with no instructor endorsement required for an initial attempt. However, the certificate itself cannot be issued until the applicant turns 18.
No. AGI privileges cover Part 61 ground training and knowledge-test recommendations except instrument-rating subjects, which require an Instrument Ground Instructor certificate.
The certificate does not expire. However, exercising its privileges requires qualifying instructional activity, an approved refresher course, or a proficiency endorsement within the preceding 12 calendar months.
You need 70% on the 100 scored multiple-choice questions, completed within the 2 hour 30 minute time limit, at a cost of $175 plus applicable tax through PSI.
Start exploring AGI's domain content directly with AGI Exam Prep's practice test tool to see exactly how the question style and pacing feel before you commit to a PSI test date.