NM-GB98 Requirements 2026: Eligibility, Prerequisites & How to Qualify

Who Regulates NM-GB98 and Why It Matters

The NM-GB98 General Building Contractor Exam is administered under the authority of the New Mexico Regulation and Licensing Department, Construction Industries Division. Exam approval and delivery run through PSI's computer-based testing network, with the current PSI contractor candidate bulletin updated April 3, 2026. Understanding this regulatory chain matters because it determines everything downstream: which application forms you file, what references you can bring into the testing center, and how your experience gets verified before you're even scheduled to sit for the exam.

If you're still getting oriented to the credential itself, the overview at What Is NM-GB98? and the broader breakdown in NM-GB98 Certification are good starting points before you dive into the eligibility mechanics below.

Experience & Education Requirements

Before you can even schedule the technical exam, you need to demonstrate qualifying field experience. New Mexico requires four years and 8,000 hours of qualifying experience within the preceding 10 years for the qualifying party on a GB-98 application. This is the single largest hurdle for most candidates - not the exam itself.

There's a partial offset for formal training. Approved education or training programs may receive half-time credit for up to one-half of the total experience requirement. In practical terms, this means a construction-related degree, apprenticeship, or approved trade program can shave meaningful time off the clock, but it cannot fully replace hands-on field experience - you still need real jobsite hours to qualify.

Applicants also submit a qualifying-party application along with a work-affidavit documenting their experience history. This affidavit carries a $36 fee and is where your years and hours get formally reviewed by the Construction Industries Division before exam eligibility is granted.

Exam Structure: GB-2 Part 1 and GB-98 Part 2

The GB-98 combination technical exam is really two separate exams delivered as one package:

• GB-2 Residential Building Contractor Part 1: 80 questions, 225 minutes
• GB-98 General Building Contractor Part 2: 100 questions, 310 minutes

Both parts are open book, and each requires a 75% passing score independently - there's no averaging between the two. This structure means candidates are effectively studying two overlapping but distinct question banks, each pulling from construction fundamentals but weighted differently across content areas.

For a full breakdown of exactly what each of the 17 content areas covers, see NM-GB98 Exam Domains 2026: Complete Guide to All 17 Content Areas. If you want the exact scoring mechanics spelled out in more detail, check NM-GB98 Passing Score 2026: Exactly What You Need to Pass.

Business and Law Requirement

New contractor candidates must also satisfy a Business and Law requirement separate from the technical trade content. This can be met one of two ways: passing the PSI Business and Law examination, or completing an approved Business and Law course instead.

The PSI Business and Law exam itself has its own specifications:

• 50 questions
• 130 minutes
• Open book
• 75% required to pass
• $68.88 exam fee

This exam is distinct from the GB-2/GB-98 technical content and tests contracting-business fundamentals rather than construction trade knowledge. Candidates who already hold an approved course completion certificate can skip this exam entirely, which is worth checking before you budget time and money toward it.

Fees and Cost Breakdown

Budgeting for NM-GB98 licensure involves several separate line items rather than one flat exam fee. Here's how the pieces add up:

Note that the retake fee applies to a single failed part, not the full combination - so if you pass Part 1 but not Part 2, you only pay to retake Part 2. For a more detailed cost walkthrough including how these fees interact with scheduling, see NM-GB98 Certification Cost 2026: Complete Pricing Breakdown.

Approved References and Testing Materials

Both technical exam parts and the Business and Law exam are open book, which changes how you should prepare - the goal shifts from pure memorization toward knowing where to find and how to apply information quickly under time pressure.

Approved references include the listed 2021 New Mexico building codes, the 2021 IRC or IBC as applicable to the question context, and standard trade texts. There are specific rules on how these references can be prepared before you walk into the testing center:

• References must be bound
• You may highlight, underline, index, and permanently tab your references in advance
• References may not contain handwritten notes or loose inserted papers
• A silent, nonprinting, nonprogrammable calculator is allowed

Application Timeline and Eligibility Windows

Once your work affidavit is approved and you're deemed eligible, the clock starts running on two separate timeframes you need to track:

• Exam eligibility lasts six months - you must schedule and sit for the exam within that window or your eligibility expires
• Passing scores remain valid for one year after you pass, giving you time to complete the rest of the licensing application without retesting

Missing either window means going back through parts of the eligibility process again, so it pays to plan your study schedule around these deadlines rather than an open-ended timeline. For specifics on scheduling windows and how PSI structures test dates, see NM-GB98 Exam Dates 2026: Testing Windows, Deadlines & Scheduling.

Preparing by Domain Weight

Because Part 1 and Part 2 each break down into eight or nine content domains with different question counts, an effective study plan allocates time proportional to weight rather than treating every topic equally. Here's how the two parts split out:

The heaviest single domain across both parts is Part 2's General Code, Plan Reading, and Estimating, at 27 of 100 questions - more than a quarter of the entire Part 2 exam. Concrete and Concrete Reinforcement is also weighted heavily in Part 2 relative to Part 1, jumping from 9 questions to 15. Candidates who assume the two parts are simply "easier" and "harder" versions of the same content often get caught off guard by how much the weighting shifts between them.

This kind of scheduling only works if you know exactly which questions live where - a full walkthrough of study methodology tied to these domain weights is available in NM-GB98 Study Guide 2026: How to Pass on Your First Attempt. For candidates wondering how the two exam parts actually feel in terms of difficulty, How Hard Is the NM-GB98 Exam? Complete Difficulty Guide 2026 covers that in more depth, and NM-GB98 Pass Rate 2026: What the Data Shows looks at the outcomes data.

Renewal and Ongoing Requirements

One requirement worth flagging early in your planning: General Building license renewal in New Mexico has no continuing education requirement attached to it. Once you've passed both technical parts and satisfied Business and Law, the ongoing maintenance burden is administrative rather than academic - there's no recurring exam or coursework cycle to track the way there is with some other trade credentials.

This makes the upfront eligibility and exam process the real gate. Getting through the experience verification, the two-part technical exam, and Business and Law is effectively the entire qualification hurdle. If you're weighing whether the investment of time and the combination exam fee of $269.06 is worth pursuing relative to your career goals, Is the NM-GB98 Certification Worth It? Complete ROI Analysis 2026 and NM-GB98 Salary Guide 2026: Complete Earnings Analysis go into that decision in more detail. You can also browse current openings that reference the license through NM-GB98 Jobs.

Once you're confident in the requirements above, practicing under realistic open-book, timed conditions is the next logical step. You can run through domain-based practice sessions and full-length simulations on the main practice test platform to get comfortable with the pacing across both parts. A quick-reference summary of the numbers covered in this article is also available in NM-GB98 Cheat Sheet 2026: One-Page Review of Must-Know Facts, and if you want structured coursework support, NM-GB98 Training outlines available options.

Frequently Asked Questions