- What Is ACE-ALM Certification?
- Who Issues the Credential and Why It Matters
- Exam Format: Questions, Time, and Passing Score
- Registration, Fees, and Enrollment Mechanics
- Content Areas Covered in the Review Course
- Who Hires ACE-ALM Certified Professionals
- Building a Realistic Preparation Timeline
- Frequently Asked Questions
- ACE-ALM is administered by the American Association of Airport Executives (AAAE).
- The exam has 100 multiple-choice questions, a 120-minute limit, and a 70% passing score.
- Standard enrollment is $555; a $395 student rate is available with a current course schedule at registration.
- Testing happens via TopClass with recorded remote proctoring - closed-book, webcam and photo ID required.
What Is ACE-ALM Certification?
ACE-ALM stands for Airport Certified Employee - Airfield Lighting Maintenance. It is one of the specialty tracks under the broader Airport Certified Employee (ACE) program, and it is built specifically for technicians and maintenance professionals who install, troubleshoot, and repair airfield lighting systems. If you're just getting oriented, our overview of What Is ACE-ALM? and our plain-language breakdown of ACE-ALM Meaning are good starting points before you dive into exam mechanics.
Unlike generic electrical certifications, ACE-ALM is narrowly focused on the equipment and standards that keep runway, taxiway, and approach lighting systems functioning safely. That includes constant-current regulators, series circuits, transformers, and the FAA guidance that governs how airfield lighting must be designed, maintained, and tested. Anyone searching What Does ACE-ALM Stand For? or What Does ACE-ALM Mean? will land on the same answer: it is a credential built around real-world airfield lighting maintenance competency, not a general aviation or airport management designation.
Who Issues the Credential and Why It Matters
ACE-ALM is issued by the American Association of Airport Executives (AAAE), the professional association that oversees several ACE specialty tracks for airport operations and maintenance staff. Earning the ACE designation with the ALM specialty signals to employers that a technician has studied - and been tested on - the specific electrical and mechanical systems that keep an airfield's visual guidance infrastructure operating within FAA expectations.
Because AAAE ties its review course content directly to FAA AC 150/5340-26C, the certification carries weight with airports that need staff who understand not just how to fix a fixture, but why the system is designed the way it is. For a deeper dive into how this credential fits into a maintenance career path, see Is the ACE-ALM Certification Worth It? Complete ROI Analysis 2026.
Exam Format: Questions, Time, and Passing Score
The ACE-ALM exam is a fixed, standardized assessment:
- 100 multiple-choice questions
- 120 minutes to complete the exam
- 70% passing score - meaning 70 correct answers out of 100
- Closed-book format with recorded remote proctoring through TopClass
- Required equipment: a working computer, webcam, microphone, and a government-issued photo ID
This is not an exam you can browse reference material during. Because it's closed-book and proctored remotely with recording, you need a quiet, private space and a stable internet connection on exam day, in addition to actual mastery of the content. Our detailed breakdown at ACE-ALM Passing Score 2026: Exactly What You Need to Pass walks through exactly how the scoring threshold works, and How Hard Is the ACE-ALM Exam? Complete Difficulty Guide 2026 discusses what makes the multiple-choice format challenging for candidates coming from a hands-on maintenance background rather than a testing-heavy one.
Key Takeaway
You need 70 correct answers out of 100 within a 120-minute window - pace yourself at roughly 70 seconds per question and flag anything you're unsure about to revisit before time runs out.
Registration, Fees, and Enrollment Mechanics
Enrollment fees and structure matter more for ACE-ALM than for many other certifications, because what you pay determines what materials and attempts you get. Here's how it breaks down:
| Item | Detail |
|---|---|
| Standard enrollment (members and non-members) | $555 |
| Student rate | $395 (requires a current course schedule submitted at registration) |
| What's included | Electronic study modules + one exam attempt |
| Failed-exam retake fee | $75 |
| Membership requirement | Optional - not required to enroll or sit the exam |
| Time limit to test | Exam must be taken within 26 months of enrollment |
Notice that review courses and printed materials are not included in the base enrollment - they cost extra. If you're budgeting for certification, it's worth reading the full cost picture in ACE-ALM Certification Cost 2026: Complete Pricing Breakdown before you commit to a registration tier. Eligibility questions - including who qualifies for the student rate - are covered in ACE-ALM Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Timing your registration around available testing windows also matters. Check ACE-ALM Exam Dates 2026: Testing Windows, Deadlines & Scheduling for how scheduling works with AAAE and TopClass.
Content Areas Covered in the Review Course
The official ACE-ALM review course maps closely to what candidates should expect on the exam. These are the technical areas the program is built around:
Electrical Fundamentals & Series Circuits
Candidates must understand basic electrical theory as it applies to series-wired airfield lighting circuits - a different animal from typical parallel-circuit residential or commercial wiring.
- How current stays constant while voltage varies across a series circuit
- Why a single failed fixture can affect an entire circuit
Constant-Current Regulators (CCRs)
CCRs are the heart of series airfield lighting circuits, and questions on their operation, adjustment, and troubleshooting are a core part of the exam.
- Brightness step settings and how they relate to output current
- Common CCR fault conditions and diagnostic approaches
Transformers, Connectors, Light Sources & Fixtures
This spans isolation transformers, connector types used in the field, bolted joint integrity, and the light sources (including bulb types) used in various fixtures.
- Proper connector installation to prevent moisture intrusion
- Bolted joint torque and inspection practices
Signs, Visual Aids & Approach Lighting
Candidates need familiarity with lighted signage, visual approach aids, and approach lighting system configurations used to guide pilots during landing.
- Differences between various approach lighting configurations
- Sign placement and maintenance standards
Electrical Safety, Test Equipment & Standby Power
Safety procedures, correct use of test equipment for diagnostics, and standby/backup power systems round out the technical content.
- Lockout/tagout and high-voltage handling around series circuits
- Standby power transfer and generator maintenance basics
General maintenance practices - inspection routines, preventive maintenance scheduling, and troubleshooting workflows - tie all of the above together. For the full domain-by-domain walkthrough with study priorities, see ACE-ALM Exam Domains 2026: Complete Guide to All 0 Content Areas.
Key Takeaway
FAA AC 150/5340-26C is named as a technical reference for the program - treat it as required reading, not optional background material.
Who Hires ACE-ALM Certified Professionals
ACE-ALM certification is aimed squarely at the maintenance side of airport operations. The people who pursue it typically work - or want to work - in roles responsible for keeping runway edge lights, taxiway lighting, approach lighting systems, and lighted signage operational and compliant. Airports of varying sizes rely on staff who hold this credential to demonstrate a documented, standardized level of competency in airfield electrical systems, rather than relying solely on informal on-the-job training.
If you're evaluating whether this certification fits your career goals, or want a sense of the kinds of positions that value it, read through ACE-ALM Jobs and ACE-ALM Salary Guide 2026: Complete Earnings Analysis. And if you're still deciding whether the credential is worth pursuing at all given the enrollment cost, Is the ACE-ALM Certification Worth It? Complete ROI Analysis 2026 lays out the tradeoffs without inflating the numbers.
Building a Realistic Preparation Timeline
AAAE recommends at least 90 days of preparation before sitting the exam, and given the 26-month window to test after enrollment, there's no reason to rush into the exam before you're ready. A sensible approach is to break your 90+ days into content blocks that mirror the review course structure rather than studying everything in a jumbled order.
Electrical Fundamentals & Series Circuits
- Build a firm grasp of series circuit behavior before moving to CCRs - everything downstream depends on this
- Work through practice questions on our practice test platform to check comprehension early
Constant-Current Regulators, Transformers & Connectors
- Focus on CCR troubleshooting scenarios, since these tend to appear as applied, not just definitional, questions
- Review bolted joint and connector installation standards
Signs, Visual Aids, Approach Lighting & Safety
- Study lighted sign and approach lighting configurations side by side to avoid confusing similar systems
- Layer in electrical safety and standby power content
Test Equipment, Maintenance & Full Review
- Practice with test equipment scenarios and general maintenance workflows
- Run full-length timed practice exams on the practice test site to simulate the 120-minute, 100-question format
Spacing your review this way lets harder conceptual material - series circuits and CCR behavior - sink in early, while procedural topics like test equipment use and maintenance scheduling get reinforced closer to exam day when they're freshest in memory. For a condensed reference you can revisit throughout this timeline, bookmark ACE-ALM Cheat Sheet 2026: One-Page Review of Must-Know Facts, and pair it with the structured approach in ACE-ALM Study Guide 2026: How to Pass on Your First Attempt.
Frequently Asked Questions
The exam consists of 100 multiple-choice questions with a 120-minute time limit, administered through TopClass with recorded remote proctoring.
You need a 70% passing score, which means answering 70 out of 100 questions correctly.
Standard enrollment is $555 for both members and non-members. A reduced student rate of $395 is available if you submit a current course schedule at registration. Enrollment includes electronic study modules and one exam attempt; review courses and printed materials cost extra.
You can retake the exam by paying a $75 retake fee, as long as you're still within your 26-month enrollment window from your original registration date.
No. Membership is optional and is not a requirement for enrolling in or sitting the ACE-ALM exam.