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NM-EE98 Certification

TL;DR
  • Part 1 has 80 questions in 200 minutes with a 75% passing requirement (60 correct).
  • Domain 1, General Knowledge and Electrical Installation Requirements, carries 13 questions - the largest single domain.
  • Approved references (2020 NEC, 2020 NM Electrical Code, 2007 NESC) must be bound; no loose papers or temporary tabs.
  • Qualifying-party applicants need four years (8,000 hours) of experience plus a notarized application before CID approves testing.

What NM-EE98 Certification Actually Covers

NM-EE98 refers specifically to Part 1, Commercial and Industrial, of the New Mexico EE-98 Residential and Commercial Electrical classification exam. It is one of three trade exams a qualifying party may need to pass to hold this contractor classification in New Mexico - the other two being Part 2 (Residential) and Part 3 (Specialties), unless the Construction Industries Division (CID) grants an exemption. A separate Business and Law examination, or an approved course, satisfies a different requirement entirely and is not part of the trade-knowledge blueprint discussed here.

If you are trying to understand the credential from the ground up, start with What Is NM-EE98? and NM-EE98 Meaning for plain-language context before diving into blueprint details.

Scope Check: This site is focused exclusively on Part 1 - Commercial and Industrial content. Residential-specific code applications live in Part 2, and specialty systems live in Part 3. Don't study those blueprints thinking they overlap perfectly with Part 1's question allocation.

Who Administers It: CID and PSI

The New Mexico Regulation and Licensing Department's Construction Industries Division (CID) sets licensing policy, experience requirements, and application review. PSI is the third-party testing provider that delivers the computer-administered exam and publishes the candidate bulletin. The most recent PSI bulletin revision, dated April 3, 2026, confirms the current Part 1 structure: 80 questions, 200 minutes, and a 75% passing threshold.

Because CID reviews and approves qualifying-party applications before PSI will schedule a test date, the two organizations function as sequential gatekeepers - approval first, then testing. For a deeper walkthrough of who exactly needs to sit for this exam and why, see What Is A NM-EE98?.

The 10 Domains of Part 1

Part 1's 80 questions are distributed across ten domains, each weighted by an official question allocation. Understanding these weights is the single most useful thing a candidate can do before opening a textbook, because it tells you where to spend your limited study hours.

DomainTopicQuestion Allocation
1General Knowledge and Electrical Installation Requirements13
2Services, Feeders, and Branch Circuits10
3Overcurrent Protection5
4Grounding and Bonding10
5Conductors and Cables8
6Raceways and Boxes8
7Hazardous Locations, Special Occupancies, and Special Equipment10
8Lighting, Signs, and General-Use Equipment6
9Motors, Transformers, and Generators6
10New Mexico State Code4

Domain 1 alone accounts for more questions than any other section, which makes sense given how broadly "general installation requirements" reaches across the entire NEC. Domains 2, 4, and 7 tie for the next tier of importance at 10 questions each, meaning services/feeders/branch circuits, grounding and bonding, and hazardous locations/special occupancies collectively make up 30 of the 80 questions - nearly 38% of the exam.

Domain 1: General Knowledge and Electrical Installation Requirements

This domain functions as the exam's foundation layer, testing whether candidates understand code organization, definitions, and baseline installation rules before applying them to more specific scenarios elsewhere on the test.

  • NEC Article 90 scope and organization
  • Definitions and general requirements that recur across multiple articles
  • Working space, clearances, and access requirements for equipment

Domain 4: Grounding and Bonding

Tied for second-highest weight, this domain rewards candidates who can distinguish grounding electrode conductor sizing from equipment grounding conductor sizing and correctly apply bonding requirements across service equipment.

  • Grounding electrode system components and sizing tables
  • Equipment bonding jumpers versus main/system bonding jumpers
  • Grounding at separate buildings and structures

Domain 7: Hazardous Locations, Special Occupancies, and Special Equipment

Because Part 1 is explicitly the Commercial and Industrial section, this domain often carries more weight than candidates expect coming from residential backgrounds - commercial and industrial buildings frequently include classified locations and specialized equipment.

  • Class/Division and Zone classification basics
  • Wiring methods and seal requirements in classified areas
  • Special occupancy rules (health care, assembly, commercial garages)

For a full breakdown of every domain with subtopic-level detail, the dedicated resource at NM-EE98 Exam Domains 2026: Complete Guide to All 10 Content Areas goes deeper than a single blog post can.

Exam Format, References, and Calculator Rules

Part 1 is delivered as computer-administered multiple choice and is open book, which changes the nature of preparation - you are not memorizing raw numbers so much as learning to navigate your references quickly under time pressure. With 200 minutes for 80 questions, you have roughly 2.5 minutes per question on average, but code-lookup questions eat more time than recall questions, so pacing awareness matters.

Approved References

  • 2020 National Electrical Code (NEC) or NEC Handbook
  • 2020 New Mexico Electrical Code
  • 2007 National Electrical Safety Code (NESC)

All references must be bound. Highlighting, underlining, and permanent tabs are permitted - but handwritten notes, loose papers, and temporary tabs are prohibited. This is a hard rule, not a suggestion; test-day proctors check reference materials, and a book with the wrong kind of tabs can be disallowed on the spot.

Key Takeaway

Tab your code book with permanent tabs well before test day - organize by article number, not by "topics you think will be tested." You won't know exactly which article a question references until you read it.

A silent, nonprinting, nonprogrammable calculator is permitted, which matters for load calculations, conductor ampacity adjustments, and voltage drop questions that appear across Domains 2, 5, and 9.

Qualifying-Party Eligibility and Application Steps

Before PSI will let you schedule Part 1, CID must approve your qualifying-party application. This requires four years (8,000 hours) of relevant experience, documented through a notarized application and experience affidavits. CID reviews the packet, and approval to test is valid for six months from the date it's granted - so don't apply for approval and then sit on it for a year; you'll need to reapply.

The specifics of what counts as qualifying experience, how affidavits should be structured, and what documentation CID typically requests are covered in detail at NM-EE98 Requirements 2026: Eligibility, Prerequisites & How to Qualify.

NASCLA Waiver Note: A CID-approved NASCLA waiver removes the trade-exam requirement only. Experience documentation and the separate Business and Law requirement still apply in full - the waiver is not a shortcut around the whole licensing process.

Fees, Scoring, and Validity Windows

Understanding the fee structure helps you plan financially and avoid unnecessary retake costs. The qualifying-party application itself costs $30 plus a $6 certificate fee per classification. The initial three-part trade-exam fee (covering Parts 1, 2, and 3 together) is $269.06. If you fail an individual part, the retake fee is $89.69 per part - meaning a strong first attempt on Part 1 specifically saves real money down the line. Business and Law is billed separately at $68.88 and is not included in the trade-exam fee.

Scoring is straightforward: Part 1 requires 60 correct answers out of 80 (75%) to pass. That passing score, once achieved, remains valid for one year - plan your remaining parts and your Business and Law exam within that window. A full cost breakdown, including how fees stack if you need multiple retakes, is available at NM-EE98 Certification Cost 2026: Complete Pricing Breakdown, and the exact scoring mechanics are explained further in NM-EE98 Passing Score 2026: Exactly What You Need to Pass.

ItemCost
Qualifying-party application$30 + $6 per classification
Initial three-part trade exam (Parts 1-3)$269.06
Retake, per failed part$89.69
Business and Law exam$68.88

Mapping a Prep Schedule to the Blueprint

Rather than following a generic study calendar, allocate weeks based on Part 1's actual question distribution. Domains with 10+ questions (1, 2, 4, and 7) deserve more calendar time than Domain 10 (New Mexico State Code) at just 4 questions or Domain 3 (Overcurrent Protection) at 5.

Week 1

Domain 1 Foundations

  • Read NEC Article 90 and general installation requirements
  • Practice navigating your bound code book with permanent tabs
Week 2

Domains 2 and 4

  • Services, feeders, branch circuit sizing calculations
  • Grounding electrode systems and bonding jumper sizing
Week 3

Domain 7 and Conductors/Raceways

  • Classified locations and special occupancy rules
  • Conductor ampacity, raceway fill, and box sizing
Week 4

Remaining Domains and Timed Practice

  • Overcurrent protection, lighting/signs, motors/transformers, NM State Code
  • Full-length 80-question timed practice runs

This is one workable structure, not the only one - for a more granular, day-by-day methodology tied to first-attempt success, see NM-EE98 Study Guide 2026: How to Pass on Your First Attempt. If you're still calibrating how much total time you need, How Hard Is the NM-EE98 Exam? Complete Difficulty Guide 2026 and NM-EE98 Pass Rate 2026: What the Data Shows offer useful framing. You can also run practice questions against the full domain blueprint at our practice test platform to see where your accuracy lags by domain.

After You Pass: Licensing, Renewal, and Careers

Passing Part 1 is one piece of a larger licensing picture. Contractor licenses built on this classification renew every three years, requiring the qualifying-party's signature and bond coverage for the renewal term. The qualifying-party certificate itself stays valid as long as it remains attached to an active license - if it goes unattached for two consecutive years, it's canceled, which is worth knowing if you ever change employers or business structures.

Journeyman licensing and continuing education requirements are separate systems from this contractor-exam blueprint, so don't confuse the two when planning your career path.

Employers hiring for roles tied to this classification typically look for candidates who can demonstrate commercial and industrial code competency directly - this is reflected in job postings and role expectations discussed at NM-EE98 Jobs. If you're weighing whether pursuing the full classification is worth the time and fees involved, Is the NM-EE98 Certification Worth It? Complete ROI Analysis 2026 and NM-EE98 Salary Guide 2026: Complete Earnings Analysis lay out the considerations without relying on borrowed statistics from unrelated credentials.

Structured Training Option: If you're building toward the 8,000-hour experience requirement or want formal instruction alongside on-the-job hours, structured coursework can complement self-study - see NM-EE98 Training for what's typically covered.

Before you schedule anything with PSI, double-check current testing windows and how far in advance you need to book - timing missteps can cost you your six-month approval window. Details on this live at NM-EE98 Exam Dates 2026: Testing Windows, Deadlines & Scheduling. And once you've built your foundational knowledge, a condensed review tool like the NM-EE98 Cheat Sheet 2026: One-Page Review of Must-Know Facts can help during final review the week before test day. You can also refresh your understanding of the classification's basics anytime at What Does NM-EE98 Mean? or What Does NM-EE98 Stand For?.

Frequently Asked Questions

How many questions are on NM-EE98 Part 1, and what's the passing score?

Part 1 has 80 questions administered in 200 minutes. You need 75% correct, which is 60 out of 80 questions, to pass.

Which domain should I prioritize first?

Domain 1, General Knowledge and Electrical Installation Requirements, carries the most questions (13), so it's the strongest foundation to build first. Domains 2, 4, and 7 follow closely at 10 questions each.

Can I bring handwritten notes into the exam?

No. Approved bound references (2020 NEC or NEC Handbook, 2020 New Mexico Electrical Code, 2007 NESC) may have highlighting, underlining, and permanent tabs, but handwritten notes, loose papers, and temporary tabs are not allowed.

What happens if I fail Part 1 but pass Parts 2 and 3?

You can retake just the failed part for $89.69 rather than repaying the full three-part fee, as long as you retest within your passing scores' one-year validity window and your qualifying-party approval hasn't expired.

Does a NASCLA waiver mean I skip everything?

No. A CID-approved NASCLA waiver only removes the trade-exam requirement. You still must document your experience and satisfy the separate Business and Law requirement.

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