TX-RW Passing Score 2026: Exactly What You Need to Pass

What "Passing" Actually Means on the TX-RW

The Texas Residential Wireman Electrician License Exam, administered through PSI Services LLC on behalf of the Texas Department of Licensing and Regulation (TDLR), sets its passing score at 70%. That single number is the entire target of your preparation, but it's worth unpacking exactly what it applies to before you build a study plan around it.

The computer-based exam delivers 80 scored multiple-choice questions in 240 minutes. Seventy percent of 80 is 56 - meaning you need 56 correct answers out of 80 to receive a passing result. There's no partial credit, no curve, and no bonus for finishing early. Every scored question carries equal weight regardless of which domain it comes from, so a question about Renewable Energy Technologies counts exactly the same toward your 56 as a question about Branch Circuit Calculations and Conductors.

If you're still deciding how to structure your prep around this number, the TX-RW Study Guide 2026 walks through a first-attempt strategy, while the difficulty guide gives a candid look at where most of the challenge actually comes from.

Scored Questions vs. the Five Unscored Items

The full exam experience totals 85 questions across four hours and 20 minutes: 80 scored questions in the initial 240-minute block, plus five unscored questions with an additional 20 minutes tacked on. The unscored items are mixed in as part of ongoing exam development - you won't be told which five they are, and they do not count toward or against your 70% threshold.

Practically, this means two things for pacing. First, don't assume every miss is costly - a handful of the questions you encounter aren't scored at all, so a rough patch doesn't necessarily mean disaster. Second, don't try to guess which questions are unscored and skip them; there's no reliable way to identify them, and treating every question with equal seriousness is the only safe approach.

The exam is available in both English and Spanish, and both language versions use the same 80-scored/5-unscored structure and the same 70% passing threshold.

Domain-by-Domain Point Targets

Because every scored question counts equally, the domains with more questions have a proportionally larger effect on whether you clear 56. Here's the official scored-item allocation across all ten content areas:

Three domains - Electrical Services, Service Equipment, and Separately Derived Systems (16), Branch Circuit Calculations and Conductors (14), and Electrical Equipment and Devices (12) - together make up 42 of the 80 scored questions. That's more than half of your 56-question target sitting inside just three of the ten domains. A full breakdown of what each domain actually tests is available in the TX-RW Exam Domains 2026 guide, which is worth reading before you allocate study hours.

On the other end of the scale, Motors and Generators, Electrical Control Devices and Disconnecting Means, and Renewable Energy Technologies each carry just 2 scored questions apiece. That doesn't mean you should skip them - six combined points is still worth studying - but it does mean spending equal hours on a 2-question domain and a 16-question domain isn't an efficient use of prep time.

What the Fiscal-2025 Numbers Say About 70%

TDLR's fiscal-year 2025 data shows 1,098 total Residential Wireman examinations, resulting in 331 passes and 767 failures - an exam-attempt pass rate of 30.15%. An additional 83 no-shows were reported separately and aren't part of that pass/fail calculation.

It's important to be precise about what this number represents: it's an exam-attempt statistic, not a first-time-candidate pass rate, and it isn't a 2026 figure. Some of those 767 failures include repeat attempts by the same candidates. Still, the data makes one thing clear - 70% is a real threshold that a substantial share of attempts don't clear, and treating the exam casually is a measurable risk. A deeper look at how this figure should shape your expectations is available in the TX-RW Pass Rate 2026 breakdown.

The Open-Book Factor: NEC Setup and Your Score

The TX-RW is open book, which changes how "knowing the material" translates into hitting 56 correct answers. You're allowed to bring a softbound National Electrical Code with notes, highlighting, or underlining you completed before test day. Permanent index tabs are allowed, but only if they were manufactured or provided by the NEC publisher - homemade tabs, third-party tabs, movable tabs, added sheets, the NEC Handbook, and loose-leaf, spiral-bound, or ring-bound versions are all prohibited.

You cannot mark up your book during the exam itself; PSI provides an electronic notepad for scratch work instead. This means your tabbing and annotation strategy has to be finished in advance, and it has a direct bearing on speed. With 240 minutes for 80 scored questions, every extra 30 seconds spent flipping through an untabbed code book on a service-sizing question adds up across the exam.

The exam also defaults to standard calculation methods and copper conductors unless a question explicitly states otherwise - code exceptions and optional methods only come into play when the question directs you there. Assuming an exception applies when it wasn't mentioned is a common way candidates cost themselves points they didn't need to lose.

Fees, Scheduling, and What Happens If You Fall Short

Each exam attempt costs $64, separate from the $20 initial license application fee charged by TDLR. If you don't reach 56 correct scored answers, you can schedule a retake - TDLR permits repeat attempts as long as you remain within your one-year eligibility window from application approval. Each retake requires paying the $64 exam fee again, so falling short isn't just a scheduling delay, it's a real cost worth factoring into your prep timeline.

Before you can even sit for the exam, TDLR application approval has to be in place, and all licensing requirements - including passing the exam - must be completed within that one-year window. For the full eligibility picture, including the 4,000 documented on-the-job hours and supervisor verification requirements, see the TX-RW Requirements 2026 page. If you want the complete cost picture including renewal fees, the TX-RW Certification Cost breakdown lays it out in full, and current testing windows are covered in the TX-RW Exam Dates 2026 guide.

Building a Study Timeline Around 56 Correct Answers

Rather than studying the NEC cover to cover, it's more efficient to sequence your weeks around the point values from the domain table above. A four-week runway built around scored-question weight looks like this:

This isn't a generic weekly template - it's ordered by scored-question weight so your limited study hours produce the biggest possible movement toward 56 correct answers. For a condensed reference you can review in the final days before your exam, the TX-RW Cheat Sheet 2026 consolidates must-know facts by domain, and running timed sets on the practice test platform is the closest simulation you'll get to the real 240-minute pacing before test day.

Common Reasons Candidates Land Below 70%

Looking at how the domain weights and exam mechanics interact, a few patterns consistently separate passing scores from ones that fall short of 56:

• Under-preparing the 16-point domain. Treating Electrical Services, Service Equipment, and Separately Derived Systems as "just another topic" rather than the single biggest scoring opportunity on the exam.
• Applying exceptions that weren't asked for. Reaching for an optional calculation method or code exception when the question gave no instruction to do so, when standard methods and copper conductors were the correct default.
• Untabbed or improperly tabbed code books. Bringing homemade or movable tabs that get flagged, or losing minutes per question flipping through an unmarked NEC.
• Poor time allocation across 240 minutes. Spending too long on low-weight domains like Renewable Energy Technologies (2 points) at the expense of high-weight domains.
• Treating the exam as a knowledge test instead of a performance test. Knowing the code conceptually isn't the same as answering 56 of 80 specific multiple-choice items correctly inside a fixed window.

If any of these sound familiar, the ROI analysis and salary guide are useful reminders of what's on the other side of clearing 70% - but the immediate fix is almost always a more deliberate approach to domain weighting and NEC setup rather than simply "studying more." Running full-length timed sessions on the TX-RW practice test site before your scheduled date is the most direct way to confirm you're consistently landing above 56 out of 80 under real time pressure.

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