NV-B Exam Domains 2026: Complete Guide to All 11 Content Areas

How the NV-B Exam Is Structured

Before diving into content areas, it helps to understand the container they live in. The Nevada State Contractors Board's Class B trade examination is administered by PSI and built from 80 multiple-choice questions. Candidates get 180 minutes to work through the exam, and a passing result requires 56 correct answers - exactly 70%. There's no partial credit for domain-level performance; your score is a single pass/fail outcome based on total correct answers across all 11 domains combined.

One structural detail that trips up first-time candidates: the exam is closed book, with one narrow exception. The Board permits code references only when they are expressly authorized by the current PSI content outline for this exam. That means you cannot bring a personal binder of notes, a general contractor's handbook, or an outdated code reference and expect it to be allowed at the test center - only the specific materials PSI's outline names are permitted, and that list can change between outline revisions.

If you want the mechanics of scoring explained in more depth - including how the 70% threshold interacts with question difficulty - see our dedicated breakdown in NV-B Passing Score 2026: Exactly What You Need to Pass.

Why Domain Weighting Matters

Not all 11 domains contribute the same number of questions to your 80-question exam. Candidates who study every domain with equal intensity often waste hours on lightly tested areas while under-preparing for the domains most likely to determine their pass or fail outcome. Three domains - Concrete, Metals, and General Code, Plan Reading, and Estimating - are tied as the largest content areas on the current outline. That single fact should reshape how you allocate study hours across the remaining smaller domains like Masonry, Doors and Windows, or Nevada One Call.

This doesn't mean you can skip the smaller domains. With only 80 questions total and a 70% passing bar, even a domain that represents a modest slice of the exam can still supply the handful of questions separating a pass from a retake. But it does mean your marginal hour of study time is generally better spent deepening your command of concrete formwork calculations or plan-reading takeoffs than memorizing every clause of a rarely-tested topic.

All 11 Content Areas, Domain by Domain

The Class B outline is organized around the sequence of a real commercial or residential building project - from earthwork through finishes, with safety and administrative knowledge woven throughout. Here's what each domain actually tests.

The Three Tied Largest Domains

Because Concrete, Metals, and General Code, Plan Reading, and Estimating carry equal, top-tier weight, it's worth pairing them together in your study plan rather than treating them as isolated topics. In practice, they overlap: a plan-reading question might ask you to interpret a structural steel detail, and an estimating question might require you to calculate concrete volume from a set of dimensions shown on a drawing. Studying them in the same study block reinforces the connections between them.

For a deeper look at how these domain-level priorities translate into an actual weekly study routine, our NV-B Study Guide 2026: How to Pass on Your First Attempt walks through sequencing decisions in more detail than we can cover here.

Domain 11: Nevada One Call - The Domain Out-of-State Candidates Miss

Candidates who've held general building licenses in other states sometimes assume every domain on the outline will feel familiar. Nevada One Call is the exception. This domain tests knowledge specific to Nevada's underground utility notification system - something a contractor licensed elsewhere has no reason to have encountered before. Because it's a standalone, state-specific domain rather than a subsection buried inside Site Work, it's easy to underestimate how directly it will be tested.

Mapping an 8-Week Study Plan to the Domains

A generic study calendar won't help you pass this specific exam - but a calendar built around the 11 domains above will. The sequence below assumes you're studying alongside work and gives the tied-largest domains the most calendar time.

Full-length timed runs matter here because 180 minutes for 80 questions leaves little room for second-guessing. Building pacing discipline during your last two weeks matters as much as content review. If you want a condensed reference to keep nearby during this final stretch, our NV-B Cheat Sheet 2026: One-Page Review of Must-Know Facts summarizes the highest-yield facts across all 11 domains in one place. You can also run realistic domain-by-domain practice questions on our practice test platform to see exactly where your weak spots sit before exam day.

Registration, Fees, and Retake Mechanics

PSI charges $95 to schedule the Class B trade exam alone, or $140 if you schedule the trade exam and the CMS together in the same sitting. Since both exams are eventually required for licensure, many candidates choose the combined scheduling option to save a trip to the test center - though it also means preparing for two exams' worth of content on the same day.

Beyond the exam fee itself, licensure requires Board approval, passing the CMS, and having a qualifying individual with four years of relevant experience earned within the prior 15 years. Approved education can substitute for up to three of those four years, which matters if you're coming from a construction-related degree or training program rather than pure field experience. Separately, a qualifying score on the NASCLA Accredited Examination for Commercial General Building Contractors can replace the Class B trade exam itself - but it does not replace the CMS, which you'll still need to pass regardless of your NASCLA status.

Nevada contractor licenses operate on a biennial cycle, so budget the $600 renewal fee into your long-term planning, not just your initial application. For the full eligibility checklist - including how the qualifying individual requirement and experience documentation work together - see NV-B Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Who Actually Uses This Credential

Class B licensure exists specifically for contractors working on buildings that require more than two unrelated building trades - think commercial structures, multi-trade renovations, and projects where a single contractor coordinates carpentry, concrete, metals, and finish work under one scope. Specialty work like plumbing and electrical generally falls under separate classifications, so the 11 domains on this exam reflect general building coordination knowledge rather than deep specialty-trade expertise.

That distinction shapes who benefits from this license: general contractors managing multi-trade commercial projects, qualifying individuals for construction firms bidding Class B-scope work, and project managers who need to demonstrate code, estimating, and cross-trade competency to the Board. If you're weighing whether pursuing this license fits your career trajectory, our analyses on NV-B Salary Guide 2026: Complete Earnings Analysis and Is the NV-B Certification Worth It? Complete ROI Analysis 2026 go deeper into that decision, and NV-B Jobs outlines the roles where this license typically opens doors.

Once you've reviewed all 11 domains and feel ready to gauge your readiness, working through realistic scenario questions on our full-length practice exams is the most direct way to confirm you can hit 56 correct out of 80 within the 180-minute window before you commit to an official exam date.

Frequently Asked Questions