FAA Aircraft Dispatcher ADX Pass Rate, Format & Study Guide

14 CFR 65.55 as amended (Amendment 65-65, 89 FR 80053) sets a minimum passing score of 70 percent on the aircraft dispatcher knowledge test. The FAA question bank for the ADX uses three-option multiple-choice questions. The portal mock uses 80 questions in 210 minutes, the question count and time used for the ADX in the documents behind this portal.

Passing the knowledge test is one of the requirements for the FAA aircraft dispatcher certificate used by air carriers.

Trainee flight dispatchers and operations staff who are preparing for the ADX knowledge test.

The certifying body does not publicly publish an official pass rate for this exam. Be wary of third-party sites citing a specific number here — treat any pass-rate claim you see elsewhere for this exam as unverified.

The FAA sets the retest rules for knowledge tests in 14 CFR Part 65; check them and the testing provider's policies before you reschedule.

The minimum passing score is 70 percent, so the percent score in the portal mock is a direct, if approximate, guide. Format: 80 three-option multiple-choice questions in 3 hours 30 minutes; the portal mock uses 80 questions in 210 minutes. No official pass rate is available for this exam, so none is quoted here.

14 CFR 65.55 as amended (Amendment 65-65, 89 FR 80053) sets a minimum passing score of 70 percent on the aircraft dispatcher knowledge test. The FAA question bank for the ADX uses three-option multiple-choice questions. The portal mock uses 80 questions in 210 minutes, the question count and time used for the ADX in the documents behind this portal. 80 multiple-choice questions with three options · 3 hours 30 minutes · 70% to pass. The minimum passing score is 70 percent, so the percent score in the portal mock is a direct, if approximate, guide.

The FAA does not publish a weight for each topic area, so none is charted.

14 CFR Part 65 Subpart C sets the eligibility requirements for the dispatcher certificate and the knowledge test. Read the current rule on the eCFR before you apply.

The testing provider charges a fee for the knowledge test, and approved courses and the practical test have their own costs. No figure is quoted here; confirm the amounts with the providers.

The knowledge test is one step toward the dispatcher certificate; the FAA sets any currency requirements for the certificate and employers set recurrent training.

Start with the Part 121 regulations and weather, then navigation, air traffic control and performance, finish with systems and human factors, and take timed 80-question runs.

This guide follows 14 CFR 65.55 as amended by Amendment 65-65 (89 FR 80053, October 1, 2024) and the FAA ADX question bank, checked October 31, 2026. Rules can change.