FAA ADX
FAA Aircraft Dispatcher Knowledge Test
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ExploreAbout this exam
The FAA Aircraft Dispatcher certificate is a Federal Aviation Administration airman credential that authorizes its holder to share operational control of a flight with the pilot in command. It is aimed at people preparing to work in airline or charter flight operations - often called dispatch, operational control, or flight control - where the dispatcher reviews weather and NOTAMs, selects routes and altitudes, computes fuel and performance, and issues the dispatch release. Earning the certificate requires meeting FAA eligibility and knowledge requirements and passing the FAA computer-based knowledge test (the ADX test), which is multiple choice. The question content spans five broad areas: regulations and dispatcher certification requirements; flight planning, dispatch release, and performance; meteorology and weather products; air traffic control, navigation, and airspace; and aircraft systems, emergency procedures, and human factors. Because the exam is heavy on applied judgment, the most effective preparation combines a structured ground-school style course with disciplined practice on scenario-based questions, followed by a review of missed items against current FAA regulations, handbooks, and advisory material. Confirm all current testing logistics - question count, time limit, passing score, fee, retake rules, and certificate validity - directly with the FAA's Airman Certification and Testing documentation, since those administrative details are outside the scope of this page.
What you'll study
About FAA ADX preparation
What is the ADX exam actually testing?
It tests whether you can exercise operational control safely: applying regulations, building a dispatch release, reading weather and NOTAMs, choosing routes and altitudes, computing fuel and performance, and responding to system failures and emergencies. Expect applied, scenario-style items rather than pure recall.
What is the format of the test?
It is a computer-based, multiple-choice knowledge test delivered at FAA-approved testing centers. Administrative specifics - number of items, time allowed, and passing score - are set by the FAA and can change, so verify them on the FAA Airmen Certification and Training & Testing pages before you schedule.
How hard is it compared with other FAA knowledge tests?
Candidates typically find it demanding because it blends regulation knowledge with quantitative flight planning and weather interpretation across a wide body of material. Treating it like a professional certification exam - scheduled study, worked problems, and timed practice - is more realistic than light review reading.
How long should I plan to study?
Plan for a structured course of several weeks rather than a few days, and finish with timed practice sets so you can pace yourself. If your practice scores are inconsistent or you rely on guessing, extend study before booking. No official minimum study hours apply.
What order should I study the topics in?
Start with regulations and dispatcher responsibilities, since they frame every other decision. Then build weather and weather products, followed by flight planning, fuel, and performance. Add ATC, navigation, and airspace, and finish with aircraft systems, emergencies, and human factors. Revisit weak areas continuously.
What are the most common failure modes?
Weak weather interpretation, shaky fuel and performance math, and misreading the regulation that governs a scenario. Another frequent problem is studying question memorization instead of underlying concepts, which collapses when an item is reworded. Always review every missed question and the reason the correct answer is correct.
If I fail, can I retake it?
Retake rules, waiting periods, and fees are set by the FAA and are not stated here. Check the FAA's Airman Knowledge Testing guidance and your testing center for current policy, and plan a focused remediation period on your weakest domains before rescheduling.
How long is the certificate valid once I earn it?
Certificate validity and currency requirements are not established by this page. Consult the FAA regulations, advisory circulars, and the Airman Certification Standards for the current rules on issuing, exercising, and maintaining dispatcher privileges.
Where do I find official testing details?
Use faa.gov directly: the Airmen Certification and Training & Testing sections, FAA Regulations, Advisory Circulars, and Handbooks & Manuals. Those are the authoritative sources for eligibility, testing logistics, and the knowledge and risk-management standards the test is built from.