- GB-98 combines two technical exams: GB-2 Part 1 (80 questions, 225 minutes) and GB-98 Part 2 (100 questions, 310 minutes).
- You need 75% on each open-book technical part, plus a separate Business and Law exam or approved course.
- Eligibility requires four years and 8,000 hours of qualifying construction experience within the preceding 10 years.
- Passing scores stay valid for one year, but exam eligibility itself expires after six months.
What NM-GB98 Licensure Actually Opens Up
The New Mexico GB-98 General Building Contractor license, issued through the New Mexico Regulation and Licensing Department's Construction Industries Division, is the credential that lets an individual or company legally pull permits and act as the general contractor of record on building projects across the state. "Jobs" tied to GB-98 aren't a single job title - they're every project role that requires the state to recognize you as a qualifying party capable of overseeing sitework, structural systems, and finish trades from foundation to roofline.
Because the license spans both residential and general building scope through its two-part technical exam, holding it signals to hiring firms and clients that you can manage a broader range of construction than a narrower specialty license allows. If you're still deciding whether the investment makes sense for your career, it's worth reading through Is the NM-GB98 Certification Worth It? Complete ROI Analysis 2026 before committing time to the application and study process.
Who Hires GB-98 Licensed Contractors
In practice, the demand for GB-98 license holders comes from a few recurring places:
- General contracting and construction management firms that need a qualifying party on staff to hold the license the company operates under for permitting and bidding.
- Residential and light-commercial builders expanding beyond a single-trade specialty license into full-scope building work.
- Design-build and remodeling companies that handle sitework, foundations, framing, roofing, and associated trades under one contract.
- Solo contractors and small business owners who need the license to legally bid and sign as the general contractor on their own projects.
- Superintendents and project managers whose employers require or prefer a licensed qualifying party in a leadership role, even if someone else on the team pulls the actual permits.
Because the license itself is administered by a state regulatory body rather than a private certifying organization, employers treat it as a compliance requirement first and a skills signal second. That said, the breadth of the exam content - sitework through OSHA safety - means hiring managers reasonably assume a GB-98 holder can talk knowledgeably about nearly every phase of a build. For a deeper look at how compensation trends for licensed contractors in this scope, see NM-GB98 Salary Guide 2026: Complete Earnings Analysis.
From Candidate to Licensed Contractor
Before the license translates into job opportunities, candidates have to clear a specific sequence of eligibility and testing steps. Understanding the mechanics matters because gaps in paperwork or timing can delay when you're actually able to accept GB-98-dependent work.
- Confirm experience eligibility. The state requires four years and 8,000 hours of qualifying construction experience within the preceding 10 years. Approved education or training can count for half-time credit toward up to half of that requirement.
- Submit the qualifying-party application and work affidavit. This carries a $36 fee and documents the experience you're using to qualify.
- Register for testing through PSI. Exam approval and computer-based testing are administered through PSI, using the current contractor candidate bulletin (last updated April 3, 2026).
- Sit for the GB-98 combination technical exam. This pairs GB-2 Residential Building Contractor Part 1 (80 questions, 225 minutes) with GB-98 General Building Contractor Part 2 (100 questions, 310 minutes), for a combined fee of $269.06. Each part is open book and requires a 75% score to pass.
- Satisfy Business and Law. New contractor candidates must also pass the PSI Business and Law exam (50 questions, 130 minutes, open book, 75% passing, $68.88) or complete an approved course covering the same material.
Once you pass, that eligibility to sit for testing lasts six months, and a passing score itself remains valid for one year - so there's a real deadline pressure to finish both parts and Business and Law within a workable window. A full fee breakdown, including retake costs, is covered in NM-GB98 Certification Cost 2026: Complete Pricing Breakdown.
Key Takeaway
If you fail one technical part but pass the other, a single-part retake costs $134.53 rather than the full $269.06 combination fee - plan your study time accordingly so you don't have to repeat content you've already mastered.
What Employers Expect You to Know Cold
The GB-98 combination exam draws from 17 domains split across the two technical parts. Employers hiring for general contractor, superintendent, or estimator-track roles expect a license holder to be functionally fluent in all of them - not just the ones weighted heaviest on the test.
Part 1 - Foundation and Envelope Trades
Covers Sitework, Footings, and Foundations (9 questions), Concrete and Concrete Reinforcement (9 questions), Masonry (6 questions), Carpentry (12 questions), Roofing (10 questions), Associated Trades (12 questions), General Code, Plan Reading, and Estimating (14 questions), and OSHA Safety (8 questions).
- Heaviest emphasis falls on carpentry and general code/plan reading/estimating - the material most directly tied to day-to-day residential job site decisions.
Part 2 - General Building Scope
Covers Sitework, Footings, and Foundations (10 questions), Concrete and Concrete Reinforcement (15 questions), Masonry (10 questions), Carpentry (6 questions), Metals (10 questions), Roofing (6 questions), Associated Trades (10 questions), General Code, Plan Reading, and Estimating (27 questions), and OSHA Safety (6 questions).
- General Code, Plan Reading, and Estimating alone accounts for 27 of 100 questions - the single largest concentration in the entire combination exam.
That heavy weighting toward code, plan reading, and estimating in Part 2 isn't an accident - it reflects what a licensed general contractor actually does on a job site: reading drawings, reconciling them against the 2021 New Mexico building codes and applicable 2021 IRC or IBC provisions, and estimating scope and cost before work starts. For a domain-by-domain breakdown of how to study each area, see NM-GB98 Exam Domains 2026: Complete Guide to All 17 Content Areas, and for a realistic assessment of how challenging the combination exam is compared to single-part licenses, read How Hard Is the NM-GB98 Exam? Complete Difficulty Guide 2026.
| Detail | Part 1 (GB-2 Residential) | Part 2 (GB-98 General Building) |
|---|---|---|
| Questions | 80 | 100 |
| Time Allowed | 225 minutes | 310 minutes |
| Passing Score | 75% | 75% |
| Format | Open book | Open book |
| Largest Domain | General Code, Plan Reading, and Estimating (14 questions) | General Code, Plan Reading, and Estimating (27 questions) |
Business and Law: The Overlooked Job Requirement
Candidates often focus so heavily on the technical content that they underestimate the Business and Law exam. Yet employers and clients care about this exam's subject matter just as much as technical knowledge, because it covers the contractual, licensing, and liability obligations that keep a contracting business operating legally in New Mexico. The exam itself is 50 questions, 130 minutes, open book, and requires 75% to pass - a smaller lift than either technical part, but not one to treat as an afterthought since it's a hard requirement for new contractor candidates alongside the technical exam or an approved course.
Because both the technical parts and Business and Law are open book, reference management is part of the actual skill being tested. Approved references - including the listed 2021 New Mexico building codes, 2021 IRC or IBC as applicable, and relevant trade texts - must be bound and may be highlighted, underlined, indexed, and permanently tabbed before you arrive. They cannot contain handwritten notes or loose inserted papers. A silent, nonprinting, nonprogrammable calculator is allowed. Practicing with tabbed references under time pressure is one of the most job-relevant preparation habits you can build, since it mirrors how a working contractor pulls code sections on-site under a deadline.
Fitting Exam Prep Around a Full Job Site Schedule
Most GB-98 candidates are already working full construction schedules, so prep time has to be deliberate rather than open-ended. A practical approach is to sequence study blocks around the domains with the most questions first, then circle back to smaller domains for reinforcement.
Part 1 High-Weight Domains
- Carpentry (12 questions) and Associated Trades (12 questions)
- General Code, Plan Reading, and Estimating (14 questions)
Part 2 High-Weight Domains
- General Code, Plan Reading, and Estimating (27 questions)
- Concrete and Concrete Reinforcement (15 questions)
Remaining Technical Domains
- Sitework/Foundations, Masonry, Metals, Roofing, OSHA Safety across both parts
Business and Law and Reference Tabbing
- Prepare and tab bound reference materials
- Review Business and Law content and take timed practice sessions
For a more complete study framework tied to first-attempt success, see NM-GB98 Study Guide 2026: How to Pass on Your First Attempt, and for the exact numeric benchmarks you're studying toward, check NM-GB98 Passing Score 2026: Exactly What You Need to Pass. Once you've mapped your eligibility timeline against the six-month testing window, our practice test platform can help you drill domain-specific questions under realistic timing before you sit for the real thing.
If you're still confirming whether your work history and hours qualify you to apply in the first place, review NM-GB98 Requirements 2026: Eligibility, Prerequisites & How to Qualify before registering with PSI. And if scheduling logistics are your main concern right now, NM-GB98 Exam Dates 2026: Testing Windows, Deadlines & Scheduling lays out how the six-month eligibility window interacts with test scheduling.
Key Takeaway
Because passing scores are valid for one year but eligibility to test only lasts six months, candidates working full job schedules should register for testing only once they're realistically ready to sit for both parts within that window.
FAQ
Yes. The combination exam pairs GB-2 Residential Building Contractor Part 1 with GB-98 General Building Contractor Part 2, so the license covers general building scope in addition to residential work, which is why it appeals to contractors seeking broader project eligibility.
No. A single-part retake costs $134.53, so you only need to resit the part you didn't pass rather than the full combination exam.
New contractor candidates must satisfy Business and Law either by passing the PSI Business and Law exam or by completing an approved course, in addition to the technical exam parts.
No. General Building renewal has no continuing education requirement, so once you're licensed there's no recurring coursework tied to keeping your license active.
A passing score remains valid for one year, though the initial eligibility window to sit for the exam after approval lasts six months.