- Four years of relevant roofing/siding experience within the last fifteen years is generally required; education can offset up to three.
- PSI administers the full C-15 trade exam: 60 scored questions, 120 minutes, 45 correct (75%) to pass.
- Application fee is $300; the exam portion costs $95 alone or $140 with the CMS portion.
- Board approval must happen before you can schedule the exam, and exams must be finished within six months of applying.
Who Qualifies for NV-C15
The Nevada C-15 Roofing and Siding Contractor Trade Exam is administered through PSI on behalf of the Nevada State Contractors Board, and it exists to confirm that an applicant has the hands-on knowledge to run roofing and siding jobs safely and correctly - not just to memorize code sections. Before you can sit for it, the Board has to sign off on your qualifier's background. This is different from a walk-in certification test; you cannot simply register with PSI on your own initiative. If you're still deciding whether this path fits your career, the overview in What Is NV-C15? and the plain-language breakdown in NV-C15 Meaning are good starting points before you commit to the application fee.
Typical candidates are journey-level roofers, siding installers, foremen, supervisors, or existing contractors who want to add the C-15 classification to a license, or new business owners who need a qualifying individual with direct trade experience. This isn't an entry-level credential you take right out of a pre-apprenticeship program - the licensing structure assumes real jobsite time.
Experience & Education Requirements
The qualifying individual on a C-15 application generally needs four years of relevant experience in the trade - journey-level work, foreman responsibilities, supervisory roles, or prior contractor status - within the preceding fifteen years. That fifteen-year lookback matters: work from early in a long career may not count if it falls outside the window, so document dates carefully when you assemble your history.
Approved education can substitute for up to three of those four years. This is a partial substitution, not a full waiver - some documented field time is still expected in nearly every case. If you're weighing whether formal coursework or additional jobsite hours will get you to the application faster, it's worth reviewing what the Board accepts as qualifying education before you assume any particular program applies.
- Experience verification: supervisors, employers, or prior licensees typically need to confirm your work history.
- Resume or accepted alternative evidence: a structured summary of roles, employers, and durations, formatted the way the Board expects.
- Financial documentation: a separate licensing requirement unrelated to trade skill, but mandatory before a license issues.
- Applicable bonding: required alongside the financial statement as part of the overall licensing package.
Key Takeaway
Start gathering employment verification letters and resume documentation months before you plan to apply - this paperwork, not the exam itself, is often the slowest part of qualifying.
Application Steps and Board Approval
Nevada's process is sequential: you cannot schedule the PSI exam until the Board has approved your application. That approval step reviews your experience documentation, resume, financial statements, and bonding together - it's not solely a trade-competency check. Only after that clears do you receive authorization to book a testing appointment.
Budget for the $300 application fee as a separate line item from exam costs. If your application is approved and you go on to become licensed, initial licensing and biennial renewal each run $600, with any applicable Residential Recovery Fund charges billed separately. These aren't optional add-ons buried in fine print - they're standard components of maintaining a C-15 license in Nevada.
| Requirement | Detail |
|---|---|
| Application fee | $300 |
| Initial license / biennial renewal | $600 each |
| Trade exam only | $95 |
| Trade exam + CMS portion | $140 |
| Experience needed | 4 years within preceding 15 years (education can offset up to 3) |
| Exam completion window | Within 6 months of application submission |
Exam Registration, Fees & Format
Once the Board approves you, PSI handles scheduling and delivery of the exam itself. The C-15 blueprint is computer-delivered, multiple-choice, and built around 60 scored questions with a 120-minute time limit. You need 45 correct answers - 75% - to pass. PSI may also slip in 1 to 10 unscored experimental questions, which are indistinguishable from scored items and covered within the same time block, so pacing yourself as if every question counts is the safer strategy.
Fee structure is straightforward: $95 if you're taking only the trade exam portion, or $140 if you're sitting for the trade exam together with the separate Contractor Management Survey (CMS) portion. Retakes follow the identical fee schedule - there's no discount for a second attempt. For a full accounting of every cost tied to licensure, see NV-C15 Certification Cost 2026: Complete Pricing Breakdown.
The current PSI candidate bulletin governing this exam is dated March 25, 2026, so always confirm you're studying against the most current version rather than an older cached copy, since content references and policies can shift between bulletin revisions.
What the Exam Actually Tests
Eligibility on paper doesn't mean much if you can't demonstrate trade knowledge across the nine content areas PSI draws from. The full breakdown lives in NV-C15 Exam Domains 2026: Complete Guide to All 9 Content Areas, but here's what to expect while you're still assembling your application and deciding how much study runway you'll need:
Domain 3: Steep Roofing
This is the largest single domain at 16 of 60 questions - more than a quarter of the scored exam. Candidates should expect deep coverage of shingle, tile, and steep-slope installation methods, underlayment practices, and manufacturer-standard application sequences.
- Prioritize this domain first in any study plan given its weight
Domain 1: Safety
Jobsite and fall-protection safety principles that apply specifically to roofing and siding crews, not generic construction safety trivia.
- Expect questions tied to real installation scenarios, not abstract OSHA definitions alone
Domains 2, 4-9: The Rest of the Trade
Roofing Substrates, Roofing Repairs, Elastomeric Roofing, Built-up Bituminous Roofing, Sheet Metal and Flashing, Siding, and Photovoltaic Systems round out the blueprint. None carry Steep Roofing's weight individually, but together they make up the majority of the exam, so skipping any one of them is a risky shortcut.
- Sheet Metal and Flashing and Siding both require material-specific installation knowledge
- Photovoltaic Systems reflects the growing overlap between roofing work and solar installation
Key Takeaway
Because Steep Roofing alone accounts for over a quarter of the scored questions, allocate proportionally more review time to it than to any other single domain - but don't skip the smaller domains entirely, since they collectively outweigh it.
Allowed References and Tools
Nevada's C-15 exam is open book only for the listed 2018 International Building Code. Other commonly referenced materials - NRCA manuals, OSHA guidance, and similar publications - are study-only resources; you can learn from them beforehand, but you cannot bring them into the testing room. Know this distinction cold before test day so you're not caught trying to use a resource that's only meant for preparation.
You are permitted to pre-highlight, underline, and add permanent tabs to your allowed code book before the exam. However, handwritten notes made before or during testing, and any added loose papers, are prohibited - the book has to reflect only markings that existed prior to your appointment, not annotations created for the test itself. A silent, nonprinting, nonprogrammable calculator is also permitted, which matters for any load, measurement, or quantity calculations that show up across domains like Sheet Metal and Flashing or Built-up Bituminous Roofing.
Timeline: From Application to Licensed
Once your application is submitted, required examinations must be completed within six months. That clock includes both application processing and Board approval before you can even book a PSI appointment, so don't treat six months as your study runway - treat it as the outer boundary for the entire process, including any wait for approval.
Documentation Gathering
- Collect experience verification letters, resume details, financial statements, and bonding paperwork
Application & Board Review
- Submit application with $300 fee; await Board approval before scheduling with PSI
Domain Study
- Focus heaviest review on Steep Roofing, then work through the remaining eight domains, tabbing the 2018 IBC as you go
Exam Appointment
- Sit for the 60-question, 120-minute exam; decide in advance whether to pair it with the CMS portion for the $140 combined fee
For a structured week-by-week study approach built specifically around this blueprint, the NV-C15 Study Guide 2026: How to Pass on Your First Attempt goes deeper than the high-level timeline above. And if you want to practice against realistic scored-question conditions before your appointment, our practice test platform mirrors the multiple-choice, timed format you'll face at the PSI test center.
Retake Rules and Common Disqualifiers
If you don't reach 45 correct answers on your first attempt, you must wait two weeks before retaking the exam. Retakes cost the same $95 or $140 as your original attempt - there's no reduced retake pricing. The more serious risk is cumulative: three failures void the application entirely, meaning you'd need to start the application and Board approval process over from scratch rather than simply booking a fourth sitting.
That three-strike rule is the single biggest reason to treat your first attempt seriously rather than as a diagnostic run. Understanding exactly how the 75% threshold is calculated - and what happens with those unscored experimental questions mixed in - is covered in detail in NV-C15 Passing Score 2026: Exactly What You Need to Pass.
Beyond the exam itself, applications can stall or fail for reasons unrelated to trade knowledge: incomplete experience verification, mismatched resume dates, missing financial documentation, or bonding paperwork submitted late. None of these are exam-content problems, but they can delay you well past your intended testing window, so treat the paperwork with the same seriousness as the domain study. For context on how this fits into a broader career decision, Is the NV-C15 Certification Worth It? Complete ROI Analysis 2026 and NV-C15 Jobs outline what licensed contractors typically pursue after qualifying, while NV-C15 Training covers preparation options beyond self-study.
Frequently Asked Questions
Approved education can substitute for up to three of the four required years, but it's a partial offset, not a complete replacement - some documented trade experience is still expected in the standard path.
No. Board approval precedes scheduling. You must clear the application review, including experience verification and financial documentation, before PSI will let you book an appointment.
Three failures void the application, which means restarting the application and Board approval process rather than simply scheduling a fourth attempt. Retakes in between require a two-week wait.
The trade exam can be taken alone for $95, or combined with the separate Contractor Management Survey portion for $140. Whether CMS is required depends on your specific licensing situation, so confirm with the Board before scheduling.
Steep Roofing carries the most weight at 16 of 60 questions, making it the single highest-value domain to review thoroughly if your preparation time is limited.