- What IA-ME Actually Means
- Who Runs the Exam: Board, Vendor, and Fees
- Exam Format and What "Passing" Requires
- The Eight Domains Behind the Acronym
- Eligibility: Who Can Even Sit for IA-ME
- What You Can and Can't Bring to Test Day
- Retesting, Renewal, and Staying Licensed
- Why the Distinction Matters for Your Prep
- Frequently Asked Questions
- IA-ME stands for the Iowa Master Electrician License Exam, administered by PSI for the Iowa Electrical Examining Board.
- The Class A exam has 100 scored questions plus 10 unscored, open-book, using the 2023 NEC, with a 70% passing threshold.
- Wiring and Protection, Wiring Methods and Materials, and Equipment for General Use make up 65% of scored content.
- Board sponsorship and authorization must be secured before you can even schedule with PSI.
What IA-ME Actually Means
IA-ME stands for the Iowa Master Electrician License Exam - the credentialing test administered for candidates pursuing Class A Master Electrician licensure in the state of Iowa. This is distinct from Iowa's separate Residential Master examination track, which covers a narrower scope of work. When people search "IA-ME," they're almost always asking about this specific Class A pathway: the exam content, the fees, the eligibility rules, and the licensing board behind it all.
If you're just starting your research, our companion piece What Is IA-ME? breaks down the basic definition in plain language, while IA-ME Meaning and What Does IA-ME Stand For? cover related angles on terminology. This article goes a level deeper, focusing on the mechanics that actually determine whether you pass.
Who Runs the Exam: Board, Vendor, and Fees
The Iowa Electrical Examining Board, operating within the Department of Inspections, Appeals, and Licensing (DIAL), sets the licensing standards for Master Electricians statewide. Actual test delivery is handled by PSI Services LLC, which runs the computer-based testing centers and publishes the official exam bulletin.
As of the PSI bulletin updated September 19, 2025, the exam fee is $87. That fee covers the test session itself - it is separate from the license fee. The full three-year Class A master license costs $375**, though initial fees are prorated depending on the month you're issued the license within the current 2026-2028 licensing cycle. Budget for both numbers separately when planning your path, and see IA-ME Certification Cost 2026: Complete Pricing Breakdown for a full cost breakdown across the entire process.
Key Takeaway
Don't confuse the $87 PSI exam fee with the $375 three-year license fee - they're billed at different stages and to different entities.
Exam Format and What "Passing" Requires
The IA-ME Class A exam is a computer-based, multiple-choice, open-book test. That single detail changes how you should prepare - it's less about memorizing exact code numbers and more about knowing where to find and apply them quickly.
- 110 total questions: 100 scored plus 10 unscored (unscored items are used for future exam development and aren't identified to you).
- 270 total minutes: 240 minutes for the scored/unscored combined content, plus an additional 30 minutes specifically allotted for the unscored portion.
- Passing score: 70% of the 100 scored questions - you need to answer 70 correctly.
- Reference standard: NEC 2023, which DIAL has used for testing since January 1, 2024.
For the exact number you need to hit and how it's calculated, see IA-ME Passing Score 2026: Exactly What You Need to Pass. If you're weighing whether this format is manageable given your background, How Hard Is the IA-ME Exam? Complete Difficulty Guide 2026 walks through the difficulty factors in more detail.
The Eight Domains Behind the Acronym
Behind the letters "IA-ME" sits a specific content blueprint. The scored portion of the exam is organized into eight domains, and three of them dominate the test:
Domain 2: Wiring and Protection (25%)
The single largest domain. Covers overcurrent protection, grounding and bonding, branch circuits, feeders, and services.
- Highest point value on the exam - prioritize this first in your study plan
Domain 3: Wiring Methods and Materials (20%)
Conductor types, raceways, boxes, cable systems, and installation requirements across different occupancy types.
- Heavily tied to NEC Chapter 3 - know your article numbers
Domain 4: Equipment for General Use (20%)
Motors, appliances, HVAC equipment, switchboards, and general-use equipment installation rules.
- Together with Domains 2 and 3, this accounts for 65% of all scored questions
The remaining domains - General Electrical Knowledge (10%), Special Occupancies (10%), Special Equipment (5%), Special Conditions (5%), and Communication Systems (5%) - round out the blueprint but carry less individual weight. That said, skipping them entirely is risky since they still represent 35% combined. For a complete walkthrough of all eight areas with subtopics, read IA-ME Exam Domains 2026: Complete Guide to All 8 Content Areas.
| Domain | Weight | Study Priority |
|---|---|---|
| Wiring and Protection | 25% | Highest |
| Wiring Methods and Materials | 20% | High |
| Equipment for General Use | 20% | High |
| General Electrical Knowledge | 10% | Moderate |
| Special Occupancies | 10% | Moderate |
| Special Equipment | 5% | Lower |
| Special Conditions | 5% | Lower |
| Communication Systems | 5% | Lower |
Eligibility: Who Can Even Sit for IA-ME
Passing IA-ME requires knowing the code, but sitting for it requires meeting eligibility rules first. The standard path is one year of Board-acceptable experience as a licensed Class A or Class B journeyman electrician. There's also an examination-upgrade route available to an active Class B master who wants to move up to Class A.
Before you can even schedule with PSI, you need Board sponsorship and authorization. This authorization isn't indefinite - it covers two attempts or a six-month window, whichever comes first. Once you pass, the clock keeps running: your approved exam result is only valid for license application purposes if you apply within 24 months of the pass date.
Full detail on documentation, experience verification, and the upgrade route is covered in IA-ME Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Key Takeaway
Get Board sponsorship and authorization locked in before you even think about picking a PSI test date - this step is a prerequisite, not a formality.
What You Can and Can't Bring to Test Day
Because IA-ME is open-book, what you're allowed to bring matters as much as what you know. Approved references are limited to the 2023 NEC or the 2023 NEC Handbook. You're permitted to prepare your copy in advance with highlighting, underlining, and permanent indexing (tabs that are glued or otherwise permanently affixed).
What's prohibited is just as important:
- Handwritten notes anywhere in the book
- Removable tabs or sticky flags
- Extra loose papers or inserts
- Ugly's Electrical References (explicitly disallowed)
For calculations, you can use the on-screen calculator provided by the testing software, or bring your own approved nonprogrammable, nonprinting calculator. Also plan your schedule carefully: cancellations or reschedules must happen at least two days before your test date, or you risk forfeiting your fee. See IA-ME Exam Dates 2026: Testing Windows, Deadlines & Scheduling for scheduling logistics.
Retesting, Renewal, and Staying Licensed
If you don't pass on your first attempt, Iowa's rules layer in escalating requirements the more times you retest. After two failures, you must wait six months and complete 12 approved continuing-education hours before testing again. That same six-month wait and education requirement applies again after a fourth failure. After a sixth failure, further attempts require Board approval through a formal petition, plus another six-month wait.
Once licensed, renewal isn't automatic either. A full three-year term requires 18 approved continuing-education hours, including at least six hours specifically on the NEC under the Board's continuing-education guidance. If your first term is shorter than three years (because of prorated issuance), the requirement scales down to six hours for each year or partial year licensed.
Required Before Retest
- Wait 6 months minimum
- Complete 12 approved CE hours
Required Before Retest
- Wait 6 months again
- Complete another 12 approved CE hours
Required Before Retest
- File a formal petition to the Board
- Obtain Board approval, then wait 6 months
These escalating rules are one more reason to treat your first attempt seriously. Our IA-ME Study Guide 2026: How to Pass on Your First Attempt lays out a structured approach for exactly this reason - avoiding the retest penalty cycle altogether.
Why the Distinction Matters for Your Prep
Understanding precisely what IA-ME means - the Iowa Class A Master Electrician exam, not a generic multi-state credential - changes how you prepare. Generic electrical trivia or study material written for a different state's code cycle won't map cleanly onto Iowa's 2023 NEC reference or its specific domain weighting toward Wiring and Protection, Wiring Methods and Materials, and Equipment for General Use.
It also affects your career calculus. Employers hiring for Master Electrician roles in Iowa - contracting firms, industrial facilities, municipal inspection departments - are specifically looking for the Class A credential this exam unlocks, tied to Iowa Electrical Examining Board licensure. If you're evaluating whether the investment of time and the $87 exam fee plus $375 license fee pays off, Is the IA-ME Certification Worth It? Complete ROI Analysis 2026 and IA-ME Salary Guide 2026: Complete Earnings Analysis dig into that question further. For a look at where the credential actually opens doors, check IA-ME Jobs.
If you want to see how candidates typically perform and where the common sticking points are, IA-ME Pass Rate 2026: What the Data Shows covers that in depth. And once you're ready to test your knowledge against realistic scored/unscored question formats, our practice platform at IA-ME Exam Prep mirrors the actual 110-question structure so there are no surprises on test day.
Key Takeaway
Every study resource you use should be built specifically around Iowa's Class A blueprint and the 2023 NEC - generic multi-state electrical prep won't align with this exam's exact weighting.
Frequently Asked Questions
On this site, IA-ME refers exclusively to the Iowa Master Electrician License Exam for Class A licensure, administered by PSI for the Iowa Electrical Examining Board. Other industries may use the same initials for unrelated credentials, but none of that applies here.
No. IA-ME as covered here specifically targets the Class A Master Electrician examination pathway, which is separate from Iowa's Residential Master examination track.
The exam references the 2023 NEC (or 2023 NEC Handbook), which DIAL confirms has been the testing standard since January 1, 2024.
There are 110 total questions - 100 scored and 10 unscored - with 240 minutes for the main content plus an additional 30 minutes allotted for the unscored portion, for 270 minutes total.
No. Handwritten notes, removable tabs, extra papers, and Ugly's Electrical References are all prohibited. Only a 2023 NEC or 2023 NEC Handbook with permanent highlighting, underlining, and indexing is allowed.