- Why AVIXA Doesn't Publish an Official CTS-I Pass Rate
- The Data AVIXA Actually Shares
- Domain Weighting as a Pass-Likelihood Signal
- Who Sits for the CTS-I Exam
- Eligibility, Fees, and the Retake Clock
- CTS vs. CTS-I: Reading the Progression
- Turning Domain Data Into a Study Plan
- Gauging Your Own Odds Before Test Day
- FAQ
- AVIXA does not publish an official CTS-I pass rate; the exam's real "data" is its scoring scale and domain weights.
- Passing requires a scaled score of 350 out of 500 across 110 questions in 150 minutes.
- Install AV Systems carries 39% of the exam, making it the single biggest factor in most outcomes.
- A valid CTS credential and roughly three to four years of installation experience are the real filters on who attempts this exam.
Why AVIXA Doesn't Publish an Official CTS-I Pass Rate
If you've searched for a hard number on how many candidates pass the Certified Technology Specialist - Installation (CTS-I) exam, you've likely come up empty. AVIXA does not release an official pass rate for CTS-I, and no credible third-party source publishes one either. That doesn't mean the exam is a mystery - it means the useful data lives elsewhere: in the scoring model, the question format, and the domain weighting that AVIXA does publish in its official exam content outline.
This article works through that available data so you can form a realistic, evidence-based picture of what it takes to pass, rather than relying on anecdotal "it's easy" or "it's brutal" forum posts. For a broader look at exam intensity, pair this with How Hard Is the CTS-I Exam? Complete Difficulty Guide 2026.
The Data AVIXA Actually Shares
Here's what is documented and verifiable about the CTS-I exam structure:
- Format: 110 questions total, including 10 non-scoring pilot questions mixed in without identification.
- Time: 150 minutes, administered at Pearson VUE testing centers.
- Question types: Multiple-choice and hotspot items, meaning some questions ask you to click a specific location or component rather than select text.
- Passing score: A scaled score of 350 on a 0-500 scale.
- Prerequisite: A valid CTS credential is mandatory before you can even register.
The scaled scoring model is worth pausing on. Because raw questions are converted to a scaled score, the exact number of correct answers needed to hit 350 can shift slightly between test forms. This is standard psychometric practice - it equalizes difficulty across different exam versions - but it also means you can't calculate your pass margin by simply counting right answers. For a full breakdown of how the scale works, see CTS-I Passing Score 2026: Exactly What You Need to Pass.
Key Takeaway
Treat 350/500 as a target, not a percentage. Scaled scoring means your prep should focus on mastering content across all six domains rather than trying to reverse-engineer a raw-score threshold.
Domain Weighting as a Pass-Likelihood Signal
Without an official pass rate, the most reliable predictor of exam outcomes is the domain weighting itself. AVIXA structures the CTS-I around six domains, and the distribution tells you exactly where the exam concentrates its risk:
Domain 1: Implement Pre-Installation Activities (17%)
Covers site verification, safety planning, and confirming the installation is ready to proceed as designed.
- Reviewing drawings and specifications before work begins
Domain 2: Practice Ongoing Project Responsibilities (12%)
Focuses on documentation, communication, and change management during an active install.
- Tracking change orders and project scope adjustments
Domain 3: Conduct Site Rough-In/First-Fix (12%)
Tests knowledge of cabling, conduit, and infrastructure work completed before final equipment installation.
- Cable pathway planning and labeling standards
Domain 4: Install AV Systems (39%)
By far the largest domain, covering mounting, termination, connectivity, and system assembly across device types.
- Signal flow verification and equipment placement
Domain 5: Perform AV Systems Closeout (12%)
Covers testing, commissioning, and client sign-off procedures at project completion.
- Functional testing against acceptance criteria
Domain 6: Conduct Post Project Activities (8%)
The smallest domain, covering support, warranties, and maintenance handoff.
- Warranty documentation and service transition
Because Install AV Systems accounts for 39% of the exam, it functions almost as a gatekeeper domain - weak knowledge there has an outsized effect on your scaled score compared to any other single domain. For the full breakdown of what each domain actually tests, read CTS-I Exam Domains 2026: Complete Guide to All 6 Content Areas.
Who Sits for the CTS-I Exam
Pass likelihood is also shaped by who is actually eligible to sit for the exam in the first place. CTS-I isn't an entry-level credential. AVIXA requires a valid CTS credential as a prerequisite, and recommends candidates have three to four years of hands-on installation experience before attempting it. That filtering matters: the population taking CTS-I already has field exposure to mounting, termination, rough-in work, and system testing - the exam is designed to validate experience, not teach it from scratch.
This is also why CTS-I is targeted by employers who hire AV installation leads, field technicians progressing into supervisory roles, and integration firms bidding on commercial contracts that specify certified installers. If you're weighing whether the credential fits your career path, Is the CTS-I Certification Worth It? Complete ROI Analysis 2026 and CTS-I Jobs both dig into where the credential actually opens doors.
Eligibility, Fees, and the Retake Clock
Two administrative facts shape outcomes as much as content knowledge does:
- Cost: $490 for AVIXA Premium or Elite members, $590 for nonmembers, in the U.S.
- Eligibility window: 120 days from approval to sit for the exam.
The 120-day window is a practical constraint that's easy to underestimate. Candidates who apply before they're actually ready to study burn calendar time waiting on scheduling, work travel, or project deadlines - and then find themselves testing under time pressure rather than content readiness. Build your prep timeline backward from your test date, not forward from your application date. For the full cost picture, including renewal units, see CTS-I Certification Cost 2026: Complete Pricing Breakdown and CTS-I Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Because retakes cost real money and eat into your eligibility window, treating the first attempt as the only attempt is the more disciplined mindset - even without a published pass rate to compare yourself against.
CTS vs. CTS-I: Reading the Progression
One reason pass-rate speculation runs wild online is that people conflate CTS and CTS-I difficulty. They're different exams testing different things. If you're still clarifying the distinction, What Is CTS-I? and CTS-I Meaning cover the basics of what the credential represents.
| Factor | CTS | CTS-I |
|---|---|---|
| Prerequisite | None (entry-level) | Valid CTS credential required |
| Experience recommended | General AV exposure | 3-4 years installation experience |
| Top domain weight | Varies by outline | Install AV Systems at 39% |
| Question format | Multiple-choice | Multiple-choice and hotspot |
| Passing score | Scaled, separate outline | 350 out of 500 |
The takeaway: CTS-I isn't simply "CTS but harder." It's a specialized validation of field installation competency layered on top of a credential you must already hold. That structural difference is a bigger factor in perceived difficulty than any single number could capture.
Turning Domain Data Into a Study Plan
Since Install AV Systems represents nearly two-fifths of the exam, your study calendar should reflect that weight explicitly rather than splitting time evenly across six domains. A simple way to do this is to schedule study blocks proportional to domain percentage, then use spaced review in the final week to reinforce weaker areas identified through practice questions.
Install AV Systems (39%) + Pre-Installation (17%)
- Mounting, termination, and signal flow scenarios
- Site verification and safety planning review
Rough-In/First-Fix (12%) + Ongoing Project Responsibilities (12%)
- Cable pathway and labeling standards
- Change order documentation practices
Closeout (12%) + Post Project Activities (8%)
- Commissioning and acceptance testing
- Warranty and maintenance handoff procedures
Full-Length Practice and Weak-Spot Review
- Timed practice sets mimicking the 150-minute format
- Targeted review of hotspot-style questions
This kind of proportional scheduling - weighting study time by domain percentage rather than treating every domain equally - is one of the few generic study techniques worth adapting specifically for CTS-I. For a day-by-day version of this approach, see CTS-I Study Guide 2026: How to Pass on Your First Attempt, and for a compact final review, use CTS-I Cheat Sheet 2026: One-Page Review of Must-Know Facts.
Gauging Your Own Odds Before Test Day
Without an official pass rate, the most honest self-assessment comes from simulated testing conditions. Running full-length practice exams under the actual 150-minute, 110-question format on CTS-I Exam Prep's practice test platform gives you a scaled sense of readiness that a study guide alone cannot. Because pilot questions are unmarked and mixed into the real exam, practicing with a similar mixed-difficulty format - rather than isolated flashcards - better reflects the actual test experience.
Look for two signals in your practice results: consistency across all six domains, and speed. At 150 minutes for 110 questions, you have roughly 80 seconds per question, and hotspot items often take longer to work through than straightforward multiple-choice. If your practice sessions on the full CTS-I practice exam suite show you consistently running out of time before finishing, that's a readiness gap no content review will fix - it requires timed drilling specifically.
Before you lock in an exam date, confirm you actually meet the eligibility criteria. Review CTS-I Requirements 2026: Eligibility, Prerequisites & How to Qualify to make sure your CTS credential and experience documentation are in order, and consider formal preparation through CTS-I Training if your installation experience is closer to the three-year minimum than the four-year recommendation.
Key Takeaway
Your best proxy for a "pass rate" is your own timed, full-length practice score on a realistic CTS-I practice test - not a number scraped from a forum post.
Frequently Asked Questions
No. AVIXA does not release official pass rate statistics for CTS-I. Any specific percentage you see online is an estimate, not verified data from AVIXA.
You need a scaled score of 350 out of a possible 500. The exam includes 110 questions, 10 of which are non-scoring pilot items, administered over 150 minutes.
Install AV Systems, weighted at 39% of the exam, has by far the largest impact. Weakness in this domain affects your scaled score more than any other single area.
Yes. A valid CTS credential is a mandatory prerequisite for CTS-I eligibility, and AVIXA recommends three to four years of installation experience.
You have a 120-day eligibility window to schedule and complete the exam at a Pearson VUE testing center once you're approved.