- What Is ATP?
- ATP Meaning and Terminology
- The ATM Knowledge Test Format and Fees
- Eligibility and the ATP-CTP Requirement
- The Eight ATM Exam Domains
- How the Score Report and ACS Codes Work
- Who Hires ATP-Certified Pilots
- Preparing for the ATM Efficiently
- ATP vs. Commercial Certificate
- Frequently Asked Questions
- ATP is the FAA's highest pilot certification, required to act as captain for scheduled airlines.
- The ATM knowledge test has 130 questions (125 scored) and a 3-hour-30-minute limit.
- You need a 70% score to pass, and the exam costs $175 plus tax through PSI.
- An ATP-CTP graduation certificate is mandatory before you can sit for the ATM test.
What Is ATP?
ATP stands for Airline Transport Pilot, the highest level of pilot certification issued by the Federal Aviation Administration (FAA). It is the certificate required to serve as pilot-in-command (captain) for a U.S. scheduled airline, and it sits above the Private Pilot and Commercial Pilot certificates in the FAA's licensing structure. When people ask "what is ATP," they are usually asking about either the certificate itself or the knowledge test that gates entry into airline-level flying.
This site is built specifically around the Airline Transport Pilot Multiengine Airplane knowledge test, commonly abbreviated ATM. It is one of several ATP knowledge tests the FAA offers, and it's the one most relevant to pilots headed toward multiengine turbine airline careers. If you're comparing the certificate to other credentials, our companion piece on ATP Certification walks through how the certificate fits into a pilot's overall career progression.
ATP Meaning and Terminology
The abbreviation itself is simple, but the terminology around it trips up a lot of candidates. If you want a deeper breakdown of the acronym and how it's used in aviation contexts, see ATP Meaning and What Does ATP Stand For?. In short:
- ATP = Airline Transport Pilot (the certificate)
- ATM = the multiengine airplane version of the ATP knowledge test
- ATP-CTP = the mandatory training program completed before the ATM test
People also frequently search "what does ATP mean" or "what is a ATP" when researching career paths into commercial aviation - if that's you, our related explainers What Does ATP Mean? and What Is A ATP? cover the same ground with slightly different framing.
The ATM Knowledge Test Format and Fees
The ATM is administered through PSI, the FAA's approved testing vendor network. Here's what the exam actually looks like on test day:
| Detail | Specification |
|---|---|
| Test administrator | PSI |
| Total questions | 130 (125 scored + 5 unscored validation questions) |
| Time limit | 3 hours, 30 minutes |
| Passing score | 70% |
| Fee | $175 plus applicable tax |
| Result validity | 60 calendar months |
The five unscored validation questions are mixed in with the 125 scored questions and are indistinguishable during the test, so you should treat every question as if it counts. For a full walkthrough of what "passing" actually requires numerically, read ATP Passing Score 2026: Exactly What You Need to Pass. If you're trying to nail down testing windows and how to book a seat with PSI, check ATP Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Key Takeaway
Budget for the $175 fee plus tax, and remember your 60-month clock starts running the moment you pass - plan your practical test timing around that window.
Eligibility and the ATP-CTP Requirement
You must be at least 18 years old to sit for the ATM knowledge test. But age alone doesn't get you into the testing room. Before you can register, you must present a graduation certificate from an authorized Airline Transport Pilot Certification Training Program, known as the ATP-CTP.
The ATP-CTP is a structured program, not a self-study option. It includes:
- At least 30 hours of classroom instruction covering aeronautical decision-making, airline operations, and turbine aircraft systems
- At least 10 hours in a qualified multiengine-turbine flight simulation training device
This structure exists because the ATM test assumes airline-level operational knowledge, not just single-engine private pilot fundamentals. For a complete rundown of every prerequisite - flight hours, medical certification, age, and the CTP itself - see ATP Requirements 2026: Eligibility, Prerequisites & How to Qualify. If you're budgeting for the whole process, ATP Certification Cost 2026: Complete Pricing Breakdown breaks down CTP tuition alongside the $175 test fee.
The Eight ATM Exam Domains
The ATM test content is organized around eight Areas of Operation defined in FAA-S-ACS-11A, effective May 31, 2024. Every scored question maps back to one of these domains, and understanding the domain structure is the single most useful thing you can do before opening a question bank.
Domain 1: Preflight Preparation
Covers weather interpretation, performance planning, weight and balance, and airworthiness requirements specific to multiengine turbine operations.
- Focus on cross-referencing performance charts under different conditions
Domain 2: Preflight Procedures
Tests systems knowledge, powerplant and electrical checks, and crew coordination procedures before departure.
- Memorize system limitations and abnormal indications
Domain 3: Takeoffs and Landings
Covers normal, crosswind, and performance-limited takeoff and landing scenarios in multiengine aircraft.
- Know V-speed definitions and their operational significance cold
Domain 4: In-flight Maneuvers
Covers steep turns, engine-out procedures, and other maneuvers that verify airline-level aircraft control judgment.
- Understand asymmetric thrust effects thoroughly
Domain 5: Stall Prevention
Focuses on aerodynamic stall recognition, recovery techniques, and the regulatory emphasis on stall avoidance in transport-category aircraft.
- Review angle-of-attack concepts specific to swept-wing turbine aircraft
Domain 6: Instrument Procedures
Tests IFR procedures, approach categories, and instrument system knowledge relevant to airline operations.
- Drill approach minimums and missed-approach logic
Domain 7: Emergency Operations
Covers engine failures, depressurization, fire procedures, and other abnormal/emergency scenarios unique to multiengine turbine aircraft.
- Practice identifying correct memory-item responses versus checklist items
Domain 8: Postflight Procedures
Covers shutdown procedures, securing the aircraft, and post-flight documentation requirements.
- Don't neglect this domain just because it's last - questions still appear here
For a much deeper breakdown of each domain with sample question styles and weighting considerations, see ATP Exam Domains 2026: Complete Guide to All 8 Content Areas. If you want an honest assessment of which domains tend to feel hardest and why, How Hard Is the ATP Exam? Complete Difficulty Guide 2026 is worth reading before you start a study plan.
How the Score Report and ACS Codes Work
After you finish the ATM test, PSI generates an Airman Knowledge Test Report. This report doesn't just show pass/fail - it lists ACS (Airman Certification Standards) codes tied to any subject areas where you answered questions incorrectly. Each code corresponds to a specific task within one of the eight domains above.
This matters for two reasons. First, if you don't pass, you'll know exactly which domains to revisit rather than re-studying everything blindly. Second, even if you do pass, your instructor or examiner may review this report during later stages of your certification, so it's worth understanding what the codes reference rather than ignoring them.
Key Takeaway
Keep a copy of your Airman Knowledge Test Report - the ACS codes on it map directly to the domain list above and tell you precisely where your knowledge gaps are.
Who Hires ATP-Certified Pilots
Passing the ATM test and earning the full ATP certificate opens the door to positions that require captain-level qualification. This typically includes:
- Regional and mainline airlines hiring first officers and captains on multiengine turbine aircraft
- Cargo carriers operating scheduled or on-demand freight routes
- Charter operators running Part 135 multiengine turbine operations
- Corporate flight departments that require ATP-level qualification for insurance or operational reasons
The ATP certificate is generally treated as a baseline hiring credential rather than an optional differentiator once you're targeting airline-level roles. If you're evaluating whether the investment of time and training money pays off, Is the ATP Certification Worth It? Complete ROI Analysis 2026 and ATP Salary Guide 2026: Complete Earnings Analysis go into the career-side numbers. For a look at the kinds of roles actually posted for ATP holders, see ATP Jobs.
Preparing for the ATM Efficiently
Because the ATM draws from eight distinct domains rather than one broad body of knowledge, an effective study plan is domain-sequenced rather than random. A simple approach many candidates use:
Foundational Domains
- Preflight Preparation and Preflight Procedures - these set up terminology used everywhere else
Flight Operations Domains
- Takeoffs and Landings, In-flight Maneuvers, Stall Prevention
Systems-Heavy Domains
- Instrument Procedures and Emergency Operations - typically the densest material
Review and Full-Length Practice
- Postflight Procedures plus timed practice sessions mimicking the 3-hour-30-minute limit
Spaced repetition on missed questions and short daily review sessions work well here specifically because the ACS codes on practice results tell you exactly which domain to revisit - there's no guessing involved. For a more detailed week-by-week plan tailored to first-attempt success, see ATP Study Guide 2026: How to Pass on Your First Attempt, and for a compact review sheet close to test day, ATP Cheat Sheet 2026: One-Page Review of Must-Know Facts is a fast reference. You can also run full-length timed practice sessions on our ATP practice test platform to simulate real exam pacing before you schedule with PSI.
ATP vs. Commercial Certificate
| Factor | Commercial Pilot Certificate | ATP Certificate |
|---|---|---|
| Purpose | Fly for compensation generally | Act as captain for scheduled airline operations |
| Knowledge test length | Shorter, fewer questions | 130 questions (125 scored), 3h30m limit |
| Prerequisite training | Standard commercial flight training | ATP-CTP: 30 classroom hours + 10 sim hours |
| Typical next step | Build hours toward ATP | Airline, cargo, or Part 135 captain roles |
Many candidates researching "what is ATP" are actually a few steps into a career that started with a Commercial certificate. If you want the full picture of how certification tiers connect, What Is ATP Certification? and ATP Training cover the training pipeline in more detail, and ATP Pass Rate 2026: What the Data Shows gives context on how candidates historically perform.
Frequently Asked Questions
ATP stands for Airline Transport Pilot, the FAA's highest pilot certificate, required to serve as captain on scheduled airline flights.
No. The ATM is the multiengine airplane knowledge test - one requirement among several, including the ATP-CTP training program and a practical checkride, needed to earn the full ATP certificate.
The ATM knowledge test fee is $175 plus applicable tax, paid through PSI when you schedule your test session.
No. You must present a graduation certificate from an authorized ATP-CTP program, which includes at least 30 hours of classroom instruction and 10 hours in a qualified multiengine-turbine simulator, before you can register.
Your ATM knowledge test result remains valid for 60 calendar months, so plan your practical test and remaining certification steps within that window.
Understanding what ATP actually means - the certificate, the ATM test, and the training pipeline behind it - is the first real step toward an airline career. Once you're familiar with the eight domains and the ATP-CTP requirement, the next move is disciplined, domain-by-domain practice using resources like our ATP practice test tools to build genuine test-day readiness.