What Does TX-ME Mean?

What TX-ME Actually Means

When people search "TX-ME," they're usually asking about one specific credential: the Texas Master Electrician License Exam. This is the state licensing test that a Texas Journeyman Electrician must pass to become a licensed Master Electrician - the highest individual electrical license tier issued by the Texas Department of Licensing and Regulation (TDLR). It's important to be precise here because "TX-ME" isn't a universal acronym; other industries use similar shorthand for unrelated credentials. On this site, and in this article, TX-ME means exactly one thing: the Texas Master Electrician exam pathway, its two-portion test structure, and the licensing rules TDLR attaches to it.

If you want the full breakdown of what that abbreviation covers term-by-term, see TX-ME Meaning and What Does TX-ME Stand For? for companion explanations. This article focuses on defining the exam itself - its administering agency, its format, its content domains, and the eligibility gate that keeps unqualified candidates from sitting for it.

Who Oversees TX-ME and Why It Matters

TDLR is the state agency that sets licensing requirements, approves applicants, and publishes official exam-result statistics for Texas electricians. PSI is the third-party testing vendor that actually builds and delivers the exam content, publishes the candidate bulletin, and operates the computer-based testing centers where you sit for TX-ME. Understanding this split matters practically: TDLR handles your license application, your $45 application fee, and your renewal cycle, while PSI handles scheduling, the $78 testing fee, and the day-of exam experience.

This two-agency structure also explains why exam content updates on a different timeline than license renewal rules. PSI's candidate bulletin - revised July 9, 2026 - sets the transition to the 2026 NEC for exams administered from September 1, 2026 forward. That dated bulletin supersedes any residual references to the 2023 NEC still floating around older study material, so if you're prepping now, confirm which code edition applies to your scheduled test date before you build a study plan.

Exam Format: Two Portions, One License

TX-ME isn't a single 108-question sitting in the way many licensing exams work - it's structured as two independently timed and independently passed portions, and you need to clear both to earn the license.

• NEC Knowledge portion: 75 administered questions (70 scored, 5 unscored/pretest items you can't identify), allotted 150 minutes.
• Calculations portion: 33 administered questions (30 scored, 3 unscored), allotted 170 minutes.

Combined, that's 108 questions and 320 minutes of testing time - but the two clocks don't share minutes. If you finish NEC Knowledge with time left over, that unused time does not roll into the Calculations portion. Each portion also has its own passing threshold: a scaled score equivalent to 70% on each portion separately. Passing Knowledge with a strong score and missing 70% on Calculations means you retake only the portion you failed, at a $78 PSI fee for retaking one or both portions.

For a deeper walkthrough of how the two portions interact strategically - including which one candidates tend to underestimate - read How Hard Is the TX-ME Exam? Complete Difficulty Guide 2026 and TX-ME Passing Score 2026: Exactly What You Need to Pass.

The 20 Domains Behind TX-ME

TX-ME content is organized into 20 named domains - 10 for the NEC Knowledge portion, 10 for Calculations. This is one of the more confusing parts of the exam blueprint for first-time candidates: domains 1-10 and 11-20 repeat similar subject names (Electrical Services, Electrical Feeders, Branch Circuit topics, Wiring Methods, and so on), but they belong to entirely different portions with entirely different question types. Knowledge-portion domains test code lookup and application; Calculations-portion domains test load calculations, sizing, and mathematical application of the same subject matter.

Because Services and Branch Circuit Conductors dominate the Knowledge portion, and Services dominates Calculations too, these are the highest-leverage study areas across both portions. For the complete domain-by-domain breakdown with every scored-item count, see TX-ME Exam Domains 2026: Complete Guide to All 20 Content Areas.

Getting Approved to Sit for TX-ME

TX-ME isn't open to anyone who wants to attempt it. TDLR requires 12,000 supervised on-the-job hours performed under a Texas-licensed Master Electrician, combined with holding a Texas Journeyman Electrician license for at least two years. Notably, a Journeyman Industrial license does not satisfy this requirement - a distinction that trips up candidates who assume all journeyman tracks count equally. Your supervising master electricians must verify your logged hours, and TDLR must approve your application before you're cleared to schedule a test with PSI.

There's also a clock on the back end: once TDLR receives your application, you must complete all licensing requirements within one year. That deadline pressure is a real reason to get your paperwork and hour verification lined up before you start deep exam prep, rather than after. For the full checklist of documentation, verification steps, and timing traps, see TX-ME Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Fees and Renewal Mechanics

TX-ME involves fees at two separate points, paid to two separate organizations. TDLR charges a $45 license application fee. PSI charges $78 to take both exam portions in a single sitting, and $78 again if you need to retake one or both failed portions. These aren't bundled - you pay TDLR for the application review and PSI for the actual seat time, and a failed portion means paying the PSI testing fee again, not the TDLR fee.

Once licensed, the Master Electrician credential is valid for one year and renews for $45, with a requirement of four TDLR-approved continuing education hours per cycle. Those CE hours must cover NEC updates, Texas electrical law and rules, and NFPA 70E electrical safety - not just any electrical training counts. It's also worth noting that holding the individual Master Electrician license is a separate matter from holding an Electrical Contractor business license; passing TX-ME qualifies you individually, but running a contracting business is a distinct licensing track. For the full fee breakdown across application, testing, retakes, and renewal, see TX-ME Certification Cost 2026: Complete Pricing Breakdown.

How to Read "TX-ME" on a Study Plan

Once you understand what TX-ME actually tests, building a study plan becomes a matter of sequencing, not guessing. Because Knowledge and Calculations are scored separately, treat them as two separate study tracks rather than one combined push - a candidate strong on code lookup can still fail Calculations, and vice versa.

Notice this schedule deliberately allocates more time to Domains 2, 4, and 12 than to Domain 20 (Renewable Energy Technologies), which carries only 1 scored question in Calculations - a low-yield area relative to the study hours it would otherwise absorb. For a structured week-by-week plan built entirely around this weighting logic, see TX-ME Study Guide 2026: How to Pass on Your First Attempt, and to gauge realistically how much prep time you'll need based on published portion-level results, read TX-ME Pass Rate 2026: What the Data Shows.

What Happens After You Pass

Passing both TX-ME portions is the testing milestone, but it isn't the finish line for licensure - TDLR still requires you to complete any remaining licensing steps within that one-year window from when your application was received. Once issued, your Master Electrician license runs on a one-year renewal cycle requiring the $45 fee and four continuing education hours covering NEC, Texas law/rules, and NFPA 70E. Many newly licensed Masters also start weighing whether to pursue the separate Electrical Contractor business license, since the two credentials serve different purposes - one certifies your individual competency, the other authorizes you to contract electrical work as a business.

If you're weighing whether the time and cost investment in TX-ME pays off relative to career opportunities, Is the TX-ME Certification Worth It? Complete ROI Analysis 2026 and TX-ME Salary Guide 2026: Complete Earnings Analysis cover that analysis in depth, and TX-ME Jobs looks at where Master-licensed electricians typically find work in Texas.

Whatever stage you're at - verifying eligibility, memorizing domain weights, or timing your first practice exam - running full-length practice sessions on our TX-ME practice test platform is the most direct way to feel the actual pacing pressure of 150 minutes on Knowledge and 170 minutes on Calculations before test day. You can also revisit the home practice test hub anytime you want to reset your domain-by-domain progress tracking.

Frequently Asked Questions