FAA Instrument Rating
Instrument Rating – Airplane (FAA-S-ACS-8C)
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ExploreAbout this exam
The Instrument Rating – Airplane is an FAA airman certification standard published as FAA-S-ACS-8C. The April 2024 edition is effective May 31, 2024, and appears on the FAA's Airman Certification Standards list alongside the other airplane ACS documents revised at the same time. It is written for pilots who want to fly under instrument flight rules and who must pass both a knowledge test and an oral and practical test with a designee or examiner. The ACS organizes the practical test into areas of operation; this independent study guide splits preparation into four domains: preflight preparation, preflight procedures, air traffic control clearances and procedures, and flight by reference to instruments. Each domain carries equal weight in this guide. Preparation should center on the current ACS itself, since it lists the knowledge, risk management, and skill elements the evaluator must sample, together with the FAA reference handbooks, the ACS Companion Guide for Pilots, and the computer testing supplements linked from the FAA Airman Testing pages. Use the ACS as a checklist: study each element, practice the associated task in the aircraft or an approved training device, and review your knowledge test report to target weak areas before the practical test.
What you'll study
About FAA Instrument Rating preparation
What documents define the Instrument Rating – Airplane standards?
The current standard is FAA-S-ACS-8C, dated April 2024 and effective May 31, 2024, listed on the FAA Airman Certification Standards page. The same page links the ACS Companion Guide for Pilots (FAA-G-ACS-2, with Changes 1 & 2), the ACS briefing, and the ACS FAQ. Always confirm you are studying the edition currently in effect.
What is the format of the instrument rating testing?
There are two parts: a knowledge test taken through the FAA's computer testing system, and an oral and practical test administered by an FAA designee or examiner. The FAA Airman Testing page links the Airman Certificate Testing Service, computer testing supplements, and guidance on finding an FAA examiner, plus the Airman Testing FAQ for registration and test report questions.
How long is the knowledge test and what score do I need?
The FAA pages in this source do not state a time limit or passing score for the Instrument Rating – Airplane knowledge test. They do link an ACS Knowledge Test Table of correct allotted times and an Order 8080.6H on conduct of airman knowledge tests. Check those official documents rather than relying on secondhand figures.
How much does the exam cost and what is the retake policy?
No fee or retake policy appears in the FAA source pages used here, so no figure is given. Fees are set by the testing provider and by individual examiners, and retake rules are covered in the Airman Testing FAQ and Order 8080.6H. Confirm current details with the testing center or examiner before you schedule.
How should I order my study across the four areas of operation?
Start with preflight preparation, because it builds the regulatory and weather foundation the other areas depend on. Then study preflight procedures, followed by ATC clearances and procedures, and finish with flight by reference to instruments. This guide weights all four domains equally, so do not let the flying tasks crowd out the ground knowledge.
What causes most oral and practical test failures?
The FAA source does not publish failure statistics for this rating, so no causes are asserted here. The ACS itself is the best guide: it pairs each task with knowledge, risk management, and skill elements, and applicants commonly overlook the risk management elements. Build your preparation around every element listed, not just the maneuvers.
Where can I find official sample questions and statistics?
The FAA Airman Testing page links Airman Knowledge Sample Tests, knowledge test statistics, and school norms versus national passing norms. The ACS page also offers a review of airman knowledge test questions and practical test standards. Use these official resources instead of third-party question banks, which are not affiliated with the FAA.
Is this guide affiliated with the FAA or the ACS?
No. This is independent study material written for candidates preparing for the Instrument Rating – Airplane. It is not published, endorsed, or reviewed by the FAA. The authoritative documents remain FAA-S-ACS-8C and the FAA Airman Testing pages, and you should verify every detail against them before your test.