What Is TX-ME?

What TX-ME Actually Means

TX-ME stands for the Texas Master Electrician License Exam - the state licensing test that Texas Department of Licensing and Regulation (TDLR) requires before it will issue an individual Master Electrician license. If you've seen "TX-ME" used elsewhere for a different credential, that's not what this site covers. Everything here refers specifically to the Texas electrical licensing exam delivered through PSI testing centers on behalf of TDLR.

This distinction matters because the exam's structure, fees, eligibility rules, and passing standard are unique to Texas electrical licensure. If you're comparing notes with someone who took a similarly abbreviated exam in another trade or state, the numbers won't match - and they shouldn't. For a deeper dive into naming confusion, see TX-ME Meaning and What Does TX-ME Stand For?

Who Administers TX-ME and How Registration Works

TDLR owns the license; PSI delivers the exam. Before you can even schedule a test date, TDLR must approve your application - you cannot walk in and register independently. Once approved, the fees break down as follows:

• TDLR license application fee: $45
• PSI exam fee: $78 to take both portions in one sitting
• PSI retake fee: $78 to retake one or both portions

Note that the $78 retake fee applies whether you're redoing one portion or both - there's no discount for retesting a single portion. For a full breakdown of what candidates actually spend end-to-end, including study materials, see TX-ME Certification Cost 2026: Complete Pricing Breakdown.

There's also a clock running once TDLR receives your application: all licensing requirements, including passing both exam portions, must be completed within one year. Miss that window and you'll need to restart the approval process.

Exam Format: Two Portions, 108 Questions

TX-ME isn't a single continuous test - it's two distinct exams administered back-to-back, each with its own clock and its own passing requirement.

Two mechanics trip people up here. First, unused time cannot transfer between portions - finishing NEC Knowledge in 90 minutes doesn't buy you extra time on Calculations. Second, you need 70% on each portion separately. A strong Calculations score cannot rescue a weak NEC Knowledge score, and vice versa. This is a core reason candidates underestimate the exam's difficulty; for a more complete breakdown of what makes TX-ME hard, read How Hard Is the TX-ME Exam? Complete Difficulty Guide 2026.

Both portions are computer-based, multiple-choice, and open-book, available in English and Spanish. "Open-book" here specifically means you're allowed an approved softbound NEC code book - not any code reference you'd like. For exact scoring mechanics, see TX-ME Passing Score 2026: Exactly What You Need to Pass.

The 20 Domains Behind the Two Portions

TX-ME organizes its content into 20 named domains - 10 under NEC Knowledge, 10 under Calculations. Several domain names repeat across both portions (for example, "Electrical Feeders" appears in both), but they test different skills: NEC Knowledge domains test code lookup and application, while the matching Calculations domains test the math built on that code section.

Because Services-related content is the single largest topic in both portions, it deserves disproportionate study time. For the complete scored-question allocation across all 20 domains, along with topic-by-topic study guidance, see TX-ME Exam Domains 2026: Complete Guide to All 20 Content Areas.

Eligibility: Hours, Journeyman Time, and Verification

TX-ME isn't open to anyone who wants to sit for it. TDLR requires:

• 12,000 hours of supervised on-the-job electrical experience, completed under a Texas-licensed Master Electrician
• A Journeyman Electrician license held for at least two years - a standard Journeyman license, not a Journeyman Industrial license, which does not satisfy this requirement
• Verification of your hours by the supervising master(s) you worked under
• TDLR approval before you're permitted to schedule the exam with PSI

The Journeyman Industrial distinction catches people off guard - if your journeyman-level experience was earned under an Industrial license, it doesn't count toward the two-year requirement for Master eligibility. Confirm your license type early, because discovering this gap after applying wastes both time and the one-year completion window. Full eligibility detail lives at TX-ME Requirements 2026: Eligibility, Prerequisites & How to Qualify.

The 2026 NEC Code Transition

Code editions don't stay static, and TX-ME follows PSI's published transition schedule. The PSI bulletin revised July 9, 2026 specifies that exams administered from September 1, 2026 onward use the 2026 NEC. This dated notice supersedes any residual references to the 2023 code cycle you may find in older materials.

Practically, this means the edition of the NEC you bring to the test center - and the edition your study materials reference - must align with your scheduled test date. Scheduling around this transition, along with general registration windows, is covered in TX-ME Exam Dates 2026: Testing Windows, Deadlines & Scheduling.

What Test Day Looks Like at PSI

TX-ME's open-book format comes with strict rules about what "open-book" means in practice:

• You must bring an approved softbound NEC - NEC Handbooks, loose-leaf editions, spiral or ring-bound copies, and any added papers are prohibited
• Notes, highlighting, and underlining you prepared before the test are allowed
• Tabs must be permanent, NEC-publisher-manufactured or supplied tabs - writing in your reference book during the actual test is not permitted
• A silent, battery-operated, nonprinting, nonprogrammable calculator without alphabetic capability is allowed

Getting your code book flagged or rejected at check-in because of an unapproved binding or an added insert is an entirely avoidable way to lose a testing appointment. Build your tabbing and highlighting system well before your scheduled date, not the night before.

After You Pass: License Terms and Renewal

Passing both portions is not the finish line for staying licensed. The individual Master Electrician license is valid for one year and renews for $45. Each renewal cycle requires four TDLR-approved continuing education hours covering:

• The National Electrical Code (NEC)
• Texas electrical law and rules
• NFPA 70E electrical safety

It's also worth understanding that individual Master Electrician licensure is a separate credential from the Electrical Contractor business license - passing TX-ME and holding your Master license does not automatically authorize you to operate as a licensed electrical contracting business. Those are two distinct TDLR processes.

Who Actually Needs TX-ME

TX-ME is the gateway credential for electricians in Texas who want to supervise journeymen and apprentices, pull permits as the responsible master on a job, or eventually open an electrical contracting business. It's typically pursued by journeyman electricians who've logged their required field hours and are ready to take on higher-level responsibility and pay. If you're weighing whether the investment of time, fees, and study hours is worthwhile relative to career upside, see Is the TX-ME Certification Worth It? Complete ROI Analysis 2026 and TX-ME Salary Guide 2026: Complete Earnings Analysis for how Master licensure affects earning potential and job opportunities. For a broader look at where Master-licensed electricians work, TX-ME Jobs covers common employer types and roles.

A TX-ME-Specific Way to Plan Study Time

Generic study techniques only help if you're applying them to the right material at the right time. Given that Services-related content is the largest topic block in both portions, and that each portion requires an independent 70%, a study sequence built around scored-question weight makes more sense than studying domains in numerical order.

For a structured week-by-week plan with more detail on pacing and review cycles, see TX-ME Study Guide 2026: How to Pass on Your First Attempt. If you want a condensed, single-page reference of the numbers covered in this article - fees, timing, domain weights - bookmark TX-ME Cheat Sheet 2026: One-Page Review of Must-Know Facts. And once you're ready to test your recall under realistic conditions, our practice test platform mirrors the two-portion, timed structure of the real exam.

Frequently Asked Questions