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NM-EE98J Study Guide 2026: How to Pass on Your First Attempt

TL;DR
  • You need 75% on Part 1 Code, Part 2 Theory, and the practical - each scored separately.
  • Part 1 is open-book (145 minutes, 50 questions); Part 2 is closed-book (120 minutes, 50 questions).
  • Domain 12 (Theory General Knowledge) carries 18 of 50 Part 2 questions - the single biggest target.
  • Passing scores stay valid for one year, so you can't let components sit indefinitely between attempts.

What the NM-EE98J Exam Actually Tests

The New Mexico EE-98J Journeyman Residential and Commercial Electrical Certificate Exam is administered through PSI on behalf of the New Mexico Regulation and Licensing Department, Construction Industries Division. If you've searched around and found conflicting information about fees, formats, or scoring, make sure you're reading material specific to this credential - the "NM-EE98J" acronym gets reused elsewhere, and none of those facts apply here. For a plain-language overview of who this certificate is for and what it authorizes, see What Is NM-EE98J?.

This isn't a single test. It's three separate components - Part 1 Code, Part 2 Theory, and a hands-on practical - each requiring its own passing score of 75%. You can schedule them together or separately, but you need all three checked off before you're certified. That structure alone changes how you should study, because "studying for the exam" really means preparing for three distinct evaluation formats with three distinct skill sets.

Bulletin Reference: The PSI journeyman candidate bulletin currently in circulation is dated April 13, 2023. Always confirm you're studying against the current bulletin version before test day, since references and allowed materials can be updated.

Breaking Down the Three Components

Each of the three components tests a different kind of competence, and treating them identically is the most common prep mistake.

  • Part 1 - Code (open-book): 50 questions, 145 minutes, based on the 2020 National Electrical Code and the 2020 New Mexico Electrical Code. You're allowed your own bound code books, highlighted, underlined, indexed, and permanently tabbed in advance - but no handwritten notes or loose papers, and no writing added at the testing center.
  • Part 2 - Theory (closed-book): 50 questions, 120 minutes. Nothing to reference here - this is pure recall and applied calculation, which means the material has to actually live in your head, not just in your tabs.
  • Practical: A 120-minute, 100-point hands-on exam covering motor control, transformer wiring, a doorbell circuit, lighting, and conduit bending - physical work under time pressure, evaluated against a rubric rather than multiple-choice answers.

Both written components may also include up to 10 unscored experimental questions, with extra time built in to accommodate them. You won't know which questions are experimental, so treat every question on the screen as if it counts. For a deeper look at exactly what "passing" means numerically across all three components, read NM-EE98J Passing Score 2026: Exactly What You Need to Pass.

Key Takeaway

Don't split your prep time evenly across "the exam." Split it across Part 1 Code, Part 2 Theory, and the practical separately - each has its own 75% bar and its own failure mode.

The 27 Domains That Decide Your Score

The written exams break into 20 code and theory domains, plus 7 scored practical projects - 27 total content areas. Question counts are not evenly distributed, and that unevenness is the most useful piece of intelligence you have for planning study time. For the complete breakdown with descriptions of every content area, see NM-EE98J Exam Domains 2026: Complete Guide to All 27 Content Areas.

Domain 12: Part 2 Theory - General Knowledge and Electrical Installation Requirements (18 questions)

This is by far the heaviest domain on the entire exam - more than a third of Part 2 by itself. It covers broad installation principles and general electrical requirements without a code book in front of you.

  • Prioritize this domain first when allocating closed-book study time

Domain 2: Part 1 Code - Services, Feeders, and Branch Circuits (7 questions)

The largest single Part 1 domain. Expect calculation-heavy questions on sizing and load determination that reward fast, accurate code book navigation.

  • Practice locating relevant tables quickly rather than memorizing values you can look up

Domain 4: Part 1 Code - Grounding and Bonding (6 questions)

Grounding and bonding questions tend to hinge on precise terminology and specific NEC article references, making them a strong candidate for tabbing.

  • Pre-tab grounding and bonding sections before test day since you can't add writing at the center

Domain 20: Part 2 Theory - Low Voltage, including Alarms (8 questions)

The second-heaviest theory domain. Because Part 2 is closed-book, low-voltage and alarm circuit logic needs to be memorized, not referenced.

  • Build flashcards for alarm circuit types since you won't have a code book during this component

On the practical side, the point values tell the same story: Domain 21 (Motor Control Project) and Domain 22 (Transformer Project) are each worth 20 points, as is Domain 26 (Complex Conduit Bending). Together those three stations represent 60 of the 100 practical points, which should shape how you allocate hands-on rehearsal time far more than the smaller 10-point stations like Domain 23 (Doorbell Project), Domain 24 (Lighting Project), Domain 25 (Simple Conduit Bending), or Domain 27 (Materials Identification).

ComponentFormatQuestions/PointsTimePass Threshold
Part 1 - CodeOpen-book50 questions145 minutes75%
Part 2 - TheoryClosed-book50 questions120 minutes75%
PracticalHands-on rubric100 points120 minutes75%

Registration, Fees, and Eligibility Mechanics

Before you can sit for any component, you need four years and 8,000 hours of qualifying experience - though approved education or training can cover up to half of that requirement through half-time credit. If you're still confirming whether you meet the eligibility bar, walk through the specifics in NM-EE98J Requirements 2026: Eligibility, Prerequisites & How to Qualify before you spend money on scheduling.

On the money side, the mechanics matter more than they seem to at first glance:

  • Application fee: $75
  • Combination exam fee (all components together): $206.64
  • Per-component fee if scheduled separately: $68.88 each
  • Passing scores remain valid for one year - don't pass Part 1 and then let Part 2 or the practical drift past that window
  • Certificate term: three years, with renewal at $75 and 16 hours of approved continuing education, at least 8 of which must be code-update instruction

For a full cost breakdown including how the per-component pricing compares to paying for everything at once, see NM-EE98J Certification Cost 2026: Complete Pricing Breakdown. If you're weighing scheduling windows against your one-year passing-score clock, check NM-EE98J Exam Dates 2026: Testing Windows, Deadlines & Scheduling before you commit to a testing sequence.

One-Year Clock: Because a passing score on any component is only valid for one year, sequencing matters. If you pass Part 1 first, don't wait so long on Part 2 or the practical that your Part 1 score expires before you finish.

Code Book Prep: What You Can and Can't Bring

Part 1 is open-book against the 2020 National Electrical Code and 2020 New Mexico Electrical Code, and the rules around your reference materials are specific enough to trip up unprepared candidates. Your bound code books may be highlighted, underlined, indexed, and permanently tabbed before you arrive. What they may not contain is handwriting or loose inserted papers - no cheat sheets tucked between pages, no sticky notes with formulas written on them.

A silent, nonprinting, nonprogrammable calculator is allowed, which matters for the load calculation and sizing questions concentrated in Domain 2 (Services, Feeders, and Branch Circuits) and Domain 9 (Motors, Transformers, and Generators). Since you can prep your tabs in advance but can't touch them once testing starts, treat tab placement as part of your study process, not an afterthought the night before.

  • Tab by article number and by common calculation tables, not just by chapter
  • Index your table of contents with sticky tabs pointing to the sections you struggle to locate quickly
  • Rehearse timed lookups - 145 minutes for 50 questions leaves under three minutes per question if you're flipping pages slowly

Building a Domain-Weighted Study Timeline

Generic study techniques only help if they're pointed at the right targets. Given the domain weighting above, a sensible four-week runway looks like this - heaviest domains first, lighter ones compressed near the end.

Week 1

Theory Foundations

  • Drill Domain 12 (General Knowledge and Electrical Installation Requirements) - 18 questions of Part 2
  • Start memorization flashcards since Part 2 is closed-book
Week 2

Code Navigation

  • Tab and index your 2020 NEC and 2020 NM Electrical Code books
  • Practice Domain 2 (Services, Feeders, and Branch Circuits) and Domain 4 (Grounding and Bonding) lookups under time pressure
Week 3

Remaining Written Domains

  • Cover Domain 20 (Low Voltage, including Alarms), Domain 9 (Motors, Transformers, and Generators), and Domain 15 (Grounding and Bonding, Theory)
  • Run full-length timed practice for both Part 1 and Part 2
Week 4

Practical Rehearsal

  • Physically rebuild Domain 21 (Motor Control Project) and Domain 22 (Transformer Project) - 40 combined points
  • Time your Domain 26 (Complex Conduit Bending) runs against the 120-minute practical window

If you want a broader honest assessment of where candidates typically struggle before committing to this pace, read How Hard Is the NM-EE98J Exam? Complete Difficulty Guide 2026. And once your timeline is set, a condensed reference sheet of the numbers in this article - fees, time limits, passing thresholds - is compiled in NM-EE98J Cheat Sheet 2026: One-Page Review of Must-Know Facts.

Practical Exam Prep, Station by Station

The 120-minute practical is where written knowledge has to translate into physical, timed work - and it's scored differently than the multiple-choice components. You're not picking the right answer; you're producing a correct, code-compliant physical result within a rubric worth 100 total points.

  • Motor Control Project (20 points): The single highest-value practical station - rehearse control circuit wiring until it's automatic, not something you're reasoning through under the clock.
  • Transformer Project (20 points): Equal weight to motor control. Practice connections and tap settings enough times that terminal identification doesn't cost you minutes.
  • Complex Conduit Bending (20 points): Worth twice as much as Simple Conduit Bending (10 points). If your bending skills are rusty, this is where extra range-time pays off most.
  • Doorbell Project and Lighting Project (10 points each): Smaller point values but still worth full, deliberate run-throughs so you don't lose easy points to rushed wiring.
  • Materials Identification (10 points): Often underestimated - review component and material names as seriously as you'd review a written domain.

Because Motor Control, Transformer, and Complex Conduit Bending together account for 60 of the 100 practical points, uneven prep across stations is riskier here than on the written exams. A single weak 20-point station can sink your 75% threshold even if everything else goes smoothly.

Key Takeaway

Rehearse the practical stations in the same order and time constraints as the actual exam - 120 minutes total - so you build a sense of pacing across all seven projects, not just competence at each one in isolation.

Once you're certified, the certificate opens doors with residential and commercial contractors across New Mexico who require a journeyman on staff for permitted work. If you're curious how the credential translates into hiring demand or pay expectations, NM-EE98J Jobs and NM-EE98J Salary Guide 2026: Complete Earnings Analysis cover that ground, and Is the NM-EE98J Certification Worth It? Complete ROI Analysis 2026 weighs the certificate's costs against its long-term value. To build hands-on familiarity with the question style before test day, practicing with realistic scored questions at our NM-EE98J practice test platform is one of the more direct ways to see where your domain gaps actually are, rather than guessing from memory. Running a few full-length timed sets on the practice site also helps calibrate your Part 1 pacing against the real 145-minute limit before it counts.

Frequently Asked Questions

Do I need to pass Part 1, Part 2, and the practical all on the same day?

No. You can schedule the components separately and pay the $68.88 per-component fee, but keep in mind that any passing score you earn is only valid for one year, so don't let components drift too far apart.

Can I bring my own NEC book into Part 1?

Yes, bound copies of the 2020 National Electrical Code and 2020 New Mexico Electrical Code may be highlighted, underlined, indexed, and permanently tabbed beforehand. They cannot contain handwritten notes or loose inserted papers.

What's the passing score for each component?

Each of the three components - Part 1 Code, Part 2 Theory, and the practical - requires a 75% score on its own, evaluated separately rather than averaged together.

Which domain should I study first?

Domain 12 (Part 2 Theory - General Knowledge and Electrical Installation Requirements) carries 18 of Part 2's 50 questions, making it the single largest content area on the entire exam and a logical starting point.

How long is the certificate valid once I'm certified?

The certificate term is three years. Renewal costs $75 and requires 16 hours of approved continuing education, including at least eight hours of code-update instruction.

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