- Who Actually Hires Licensed Master Electricians in Texas
- The License Path Standing Between You and Master-Level Work
- The Exam You Have to Clear First
- Domains That Matter Most for the Jobs You Want
- Scheduling Domain Review Around a Working Job
- Individual License vs. Electrical Contractor Business License
- Staying Employable: Renewal and Continuing Education
- Frequently Asked Questions
- A Master Electrician license from TDLR requires 12,000 supervised hours plus two years holding a Journeyman Electrician license.
- The TX-ME exam has two separately timed, separately passed portions: NEC Knowledge (150 minutes) and Calculations (170 minutes).
- Services and Branch Circuit Conductors together carry the heaviest scored weight in the NEC Knowledge portion, at 11 of 70 questions each.
- The individual Master Electrician license is separate from the Electrical Contractor business license required to run a contracting company.
Who Actually Hires Licensed Master Electricians in Texas
The Texas Master Electrician License Exam (TX-ME) is not a resume line item you collect for fun - it is a gatekeeping requirement issued by the Texas Department of Licensing and Regulation (TDLR) and administered through PSI testing centers. Passing it is what separates a Journeyman who takes direction from a Master who can supervise crews, sign off on installations, and, in many cases, hold the license that lets a company legally operate as an electrical contractor in Texas.
That distinction matters when you're thinking about jobs. Electrical contracting firms need at least one licensed Master on staff to qualify for an Electrical Contractor business license. Industrial facilities, hospital systems, school districts, and commercial general contractors that keep in-house electrical staff often require Master-level licensure for supervisory and superintendent roles. Service and maintenance companies use the Master license as the credential that lets an owner-operator legally run the business and pull permits. None of these employers care how many years you've swung a bag - they care whether TDLR has issued you the license, and that license only comes after you clear the exam.
The License Path Standing Between You and Master-Level Work
Before you can even sit for the exam, TDLR has to approve your application, and approval depends on documented experience, not just time served. You need 12,000 supervised on-the-job hours worked under a Texas-licensed Master Electrician, and you must have held a Journeyman Electrician license for at least two years. A Journeyman Industrial license does not satisfy this requirement - a detail that trips up candidates who spent their journeyman years in industrial settings assuming any journeyman credential would count.
Your supervising master has to verify that experience, which means the paperwork side of qualifying for the exam is as much about relationship and documentation as it is about hours logged. Once TDLR receives your application, you're on a clock: all licensing requirements, including passing the exam, must be completed within one year of that receipt date. If you're mapping out a job change or a promotion timeline, that one-year window is the real deadline you're working against - not just "whenever the next test date is open."
For the full breakdown of eligibility documentation, supervising-master verification, and the two-year journeyman clock, see TX-ME Requirements 2026: Eligibility, Prerequisites & How to Qualify.
The Exam You Have to Clear First
Once TDLR approves you, the exam itself is administered by PSI as a computer-based, open-book, multiple-choice test available in English and Spanish. It's structured as two separately timed, separately scored portions, and you must pass each one on its own - a strong score on one side does not offset a weak score on the other.
- NEC Knowledge: 75 administered questions (70 scored, 5 unscored) in 150 minutes.
- Calculations: 33 administered questions (30 scored, 3 unscored) in 170 minutes.
That's 108 total questions across 320 combined minutes, and unused time from one portion cannot transfer to the other. You need 70% on each portion separately to pass. Fees run through two different agencies: TDLR charges a $45 license application fee, while PSI charges $78 to sit for both portions together, or $78 to retake one or both portions if you don't clear them the first time. A full accounting of every fee in the process is broken down in TX-ME Certification Cost 2026: Complete Pricing Breakdown.
One more scheduling detail that affects job planning: a bulletin revision effective July 9, 2026 requires the 2026 NEC edition for exams administered from September 1, 2026 onward. If you're timing your test date around this transition, check TX-ME Exam Dates 2026: Testing Windows, Deadlines & Scheduling before you lock in a study plan around the wrong code edition.
| Portion | Administered Questions | Scored / Unscored | Time Allowed | Passing Threshold |
|---|---|---|---|---|
| NEC Knowledge | 75 | 70 scored / 5 unscored | 150 minutes | 70% |
| Calculations | 33 | 30 scored / 3 unscored | 170 minutes | 70% |
Domains That Matter Most for the Jobs You Want
The exam is built from twenty named domains - ten under NEC Knowledge and ten repeated-name domains under Calculations, each weighted differently. Knowing which domains carry the most scored questions helps you connect study time to the actual work a Master Electrician gets hired to do, whether that's commercial service upgrades, industrial feeder design, or renewable energy installations.
Domain 2 & Domain 4: Services and Branch Circuit Conductors (NEC Knowledge)
These two subject areas are jointly the largest in the NEC Knowledge portion, each carrying 11 of 70 scored questions. Together they represent nearly a third of the entire knowledge portion, which mirrors the day-to-day reality of Master-level work: service equipment sizing, separately derived systems, and branch circuit design are the bread-and-butter tasks that get a Master hired onto commercial and residential jobs alike.
- Service equipment and separately derived system rules
- Branch circuit conductor sizing and protection
Domain 12: Electrical Services, Service Equipment, and Separately Derived Systems (Calculations)
On the Calculations side, Services is the single largest domain at 8 of 30 scored questions. If you're aiming for supervisory roles that involve service load calculations and sizing sign-offs, this is the domain that most directly reflects that responsibility.
- Load calculations for service equipment
- Sizing conductors and overcurrent protection for services
The remaining domains - Definitions, Theory, and Plans; Electrical Feeders; Wiring Methods and Materials; Equipment and Devices; Motors and Generators; Control Devices and Disconnecting Means; Special Occupancies; and Renewable Energy Technologies - carry smaller but still scored allocations on both portions. For the complete weighting across all twenty domains, with the exact scored-question counts for each, see TX-ME Exam Domains 2026: Complete Guide to All 20 Content Areas.
Key Takeaway
Don't split study time evenly across twenty domains. Services and Branch Circuit Conductors alone account for 22 of 70 scored NEC Knowledge questions - prioritize those before smaller domains like Renewable Energy Technologies, which carries just 4 scored questions on the Knowledge side and 1 on Calculations.
Scheduling Domain Review Around a Working Job
Most candidates studying for the TX-ME exam are still working full electrician hours, which means study time has to be scheduled deliberately rather than squeezed in. A domain-weighted approach works better than a generic "study everything equally" plan, because it puts your limited hours against the material most likely to appear on test day - and most likely to come up on the jobsite once you're licensed.
Services and Branch Circuit Conductors
- Work through service sizing and separately derived system rules (Domain 2)
- Drill branch circuit conductor sizing and protection problems (Domain 4)
- Cross-reference the matching Calculations domains (12 and 14) since the subject names repeat across portions
Feeders, Wiring Methods, and Equipment
- Cover Electrical Feeders and Wiring Methods and Electrical Materials on both portions
- Review Equipment and Devices, Motors and Generators, and Control Devices/Disconnecting Means
- Practice open-book navigation of your approved softbound NEC using permanent tabs only
Lower-Weight Domains and Timed Drills
- Finish Special Occupancies and Renewable Energy Technologies
- Run full-length timed practice under the 150-minute and 170-minute limits separately
- Rehearse calculator restrictions: silent, nonprinting, nonprogrammable, no alphabetic keys
For a structured week-by-week plan built entirely around this domain weighting, walk through TX-ME Study Guide 2026: How to Pass on Your First Attempt. And if you want a sense of how the exam actually feels under timed, open-book conditions before you commit a study calendar to it, How Hard Is the TX-ME Exam? Complete Difficulty Guide 2026 walks through the format in more detail. You can also run full-length timed drills against the actual domain weighting on our TX-ME practice tests before you ever sit at a PSI center.
Individual License vs. Electrical Contractor Business License
A detail that surprises a lot of newly passed candidates: earning your individual Master Electrician license does not automatically make you an electrical contractor. TDLR treats the individual Master Electrician license as distinct from the separate Electrical Contractor business license required to operate a contracting company, bid jobs, and pull permits under a business name.
This matters directly for job planning. If your goal is to work as an employed Master supervising crews for someone else's company, the individual license is the finish line. If your goal is to open your own electrical contracting business, passing the TX-ME exam and holding the individual license is a prerequisite step - but you'll still need to secure the business license separately before you can legally operate as a contractor. Understanding this two-tier structure early prevents a lot of confusion when you're negotiating job offers or planning a business launch around your new credential.
If you're weighing whether the time and cost of qualifying and testing pays off against the career doors it opens, Is the TX-ME Certification Worth It? Complete ROI Analysis 2026 lays out the tradeoffs, and TX-ME Salary Guide 2026: Complete Earnings Analysis looks at how the Master license affects earning potential across different employer types.
Staying Employable: Renewal and Continuing Education
Passing the exam and getting licensed is the entry point, not the end state. 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 NEC, Texas law and rules, and NFPA 70E electrical safety.
Employers reviewing a Master's license status care about this cycle just as much as they cared about your initial pass, because a lapsed license means you can't legally sign off on work. Building that four-hour CE requirement into your annual routine - the same way you built exam prep into your weekly schedule - keeps you continuously eligible for supervisory and contractor-qualifying roles rather than scrambling to renew when a job offer depends on an active license.
Frequently Asked Questions
The two portions are separately timed and separately passed, each requiring 70%. PSI's $78 fee covers taking both portions, and a separate $78 retake fee applies if you need to retake one or both.
No. TDLR requires a Journeyman Electrician license held for at least two years; a Journeyman Industrial license does not satisfy this eligibility requirement for the Master Electrician application.
No. Only an approved softbound NEC is permitted. Handbooks, loose-leaf, spiral, and ring-bound copies, along with any added papers, are prohibited under the PSI bulletin.
Passing the exam and holding the individual Master Electrician license is a prerequisite, but the Electrical Contractor business license is a separate credential required to legally operate a contracting company.
TDLR requires all licensing requirements, including passing the exam, to be completed within one year after TDLR receives your application.