NV-C15 Certification

What Is NV-C15 Certification?

NV-C15 is the identifier used on this site for the Nevada C-15 Roofing and Siding Contractor Trade Exam, administered on behalf of the Nevada State Contractors Board by PSI. This is important to state plainly because "C-15" and similar shorthand codes appear in other unrelated licensing systems around the country. This article, and this site, are exclusively about the Nevada roofing and siding contractor license path - nothing else shares this content.

The exam itself is the full C-15 trade examination, not the narrower C-15a Roofing-only variant that some applicants confuse it with. That distinction matters for your prep: the full C-15 blueprint pulls from nine content domains spanning roofing substrates, siding, sheet metal, and photovoltaic systems, not just steep-slope shingle work.

If you're still getting oriented, our companion pieces on What Is NV-C15? and NV-C15 Meaning walk through the terminology in more depth before you dive into scheduling and study logistics.

Who Administers the Exam and Why It Matters

The Nevada State Contractors Board sets licensing policy, approves applications, and determines who is eligible to sit for the exam. PSI is the testing vendor that delivers the computer-based exam itself. Understanding this split matters practically: your application, experience verification, and board approval happen through the Contractors Board, while your actual exam-day logistics - scheduling, testing center rules, and the bulletin governing content - come from PSI.

The current PSI candidate bulletin is dated March 25, 2026, and it's the authoritative source for exam-day policy. If any third-party guide contradicts the bulletin, the bulletin wins.

Exam Format and Question Structure

The C-15 exam is delivered as computer-based, multiple-choice testing at a PSI testing center. The scored portion of the blueprint contains 60 questions, and you're given 120 minutes to complete them. A passing score requires 45 correct answers, or 75%.

PSI may also insert between 1 and 10 additional unscored, experimental questions into your exam session - these are indistinguishable from scored items and are administered within the same 120-minute window, so pacing matters even though you can't tell which questions "count."

• Format: Multiple-choice, computer-delivered
• Scored items: 60
• Time allowed: 120 minutes
• Passing threshold: 45 correct (75%)
• Unscored pretest items: 1-10, blended in randomly

For a deeper breakdown of how this format translates into real difficulty, see How Hard Is the NV-C15 Exam? Complete Difficulty Guide 2026, and for the exact scoring math, our NV-C15 Passing Score 2026 guide breaks it down question by question.

The 9 NV-C15 Exam Domains

The C-15 blueprint is organized into nine domains. Some carry far more weight than others, and the largest single domain - Steep Roofing - accounts for 16 of the 60 scored questions on its own. That's more than one-quarter of the entire exam concentrated in one content area.

For the complete weighting breakdown and how each domain maps to study time, see NV-C15 Exam Domains 2026: Complete Guide to All 9 Content Areas.

Fees, Registration, and Scheduling Mechanics

Understanding the fee structure before you apply helps you avoid surprises. The trade exam alone costs $95 per examination portion. If you're also required to sit for the separate Contractor Management Survey (CMS) portion, the combined fee for both is $140. Retakes follow the same fee schedule - there's no discounted retake rate.

Separately, the licensing application itself carries a $300 application fee, and initial licensing plus each biennial renewal costs $600, with any applicable Residential Recovery Fund charges billed separately from that base amount.

Once your application is approved by the board, you must complete required examinations within six months of submitting the application - so don't apply before you're genuinely ready to test. A full cost breakdown, including how the Residential Recovery Fund fits in, is available in NV-C15 Certification Cost 2026: Complete Pricing Breakdown.

If you're mapping out your testing calendar around board approval timelines, review NV-C15 Exam Dates 2026: Testing Windows, Deadlines & Scheduling before you submit anything.

Open Book Rules: What You Can and Cannot Bring

The C-15 exam is open book, but only for one specific reference: the 2018 International Building Code. Materials like NRCA manuals, OSHA references, and other listed study resources are useful for preparation but cannot be brought into the testing room - they're study-only.

You may also bring a calculator, but it must be silent, nonprinting, and nonprogrammable. Anything with memory storage, printing capability, or audible functions will not be permitted at your testing station.

Eligibility and Experience Requirements

Before you can sit for the trade exam, the Nevada State Contractors Board evaluates your qualifying experience. The general standard is four years of relevant journey-level, foreman, supervisory, or contractor experience completed within the preceding fifteen years. Approved education can substitute for up to three of those four years, but it cannot fully replace hands-on experience.

Beyond raw experience, the board separately requires:

• Experience verification through employer or client documentation
• A resume or accepted alternative evidence of work history
• Financial documentation as part of the license application
• Applicable bonding tied to your license type

These are distinct requirements from the exam itself - passing the trade exam doesn't waive any of them. For a step-by-step eligibility walkthrough, see NV-C15 Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Who Hires NV-C15 Licensed Contractors

Holding a C-15 license positions you to bid and contract independently on roofing and siding work in Nevada, spanning residential re-roofs, commercial built-up and elastomeric systems, siding installation and repair, and increasingly, solar-adjacent roofing work tied to photovoltaic installations. Because the exam blueprint deliberately covers substrates, repairs, sheet metal, siding, and PV systems - not just shingles - licensed contractors are equipped to take on a wider mix of project types than a narrowly focused installer.

General contractors, property management firms handling multi-unit roofing turnovers, and solar installation companies needing roof-interface expertise are all practical hiring paths once you're licensed. For a broader look at where licensed C-15 contractors find work, check NV-C15 Jobs, and if you're weighing whether the licensing investment pays off for your career plans, Is the NV-C15 Certification Worth It? Complete ROI Analysis 2026 lays out the considerations. Compensation expectations for licensed contractors are covered in NV-C15 Salary Guide 2026: Complete Earnings Analysis.

Building a Domain-Weighted Prep Schedule

Because Steep Roofing alone accounts for 16 of 60 questions, your study time should not be split evenly across all nine domains. A weighted approach - spending proportionally more time where the exam spends more points - is the most efficient use of limited prep hours.

This is a starting framework, not a rigid formula - adjust it based on where your own experience leaves gaps. For a more detailed week-by-week plan tied to first-attempt success, see NV-C15 Study Guide 2026: How to Pass on Your First Attempt. Running full-length practice sessions on our practice test platform is one of the most direct ways to simulate the real 60-question, 120-minute format before you sit for the actual exam.

Retake Policy and What Happens After Three Failures

If you don't pass on your first attempt, Nevada's retake policy requires a two-week wait before you can test again, and each retake is billed at the same fee schedule as your original attempt - there's no reduced retake pricing.

Given that six-month completion window and the two-week gap between attempts, candidates who fail early in their window have limited room for multiple retakes. This is exactly why front-loading study time on the highest-weighted domain - Steep Roofing - before your first attempt is worth the extra effort. If you want to gauge realistic expectations around first-attempt outcomes, NV-C15 Pass Rate 2026: What the Data Shows covers what's publicly known.

Frequently Asked Questions