- CTS-I is AVIXA's installation-focused credential, requiring a valid CTS and 3-4 years of installation experience.
- The exam has 110 questions (10 unscored) in 150 minutes, with a passing scaled score of 350 out of 500.
- Install AV Systems is the dominant domain at 39% of exam content - nearly 4 in 10 questions.
- Fees run $490 for AVIXA Premium/Elite members and $590 for nonmembers, with a 120-day eligibility window.
What CTS-I Certification Actually Is
CTS-I stands for Certified Technology Specialist - Installation, a credential administered by AVIXA (the Audiovisual and Integrated Experience Association) that verifies a professional can plan, execute, and close out AV system installations at a proficient level. Unlike the entry-level CTS, which covers the entire AV lifecycle at a broad level, CTS-I drills specifically into the installation phase: pre-install prep, rough-in work, physical and signal-level system installation, closeout documentation, and post-project support.
If you're looking for a plain-language breakdown of the term itself, our companion pieces on What Is CTS-I?, CTS-I Meaning, and What Does CTS-I Stand For? cover the terminology from different angles. This article focuses on what the certification involves mechanically - the exam, the domains, the eligibility rules, and how the credential functions in your career.
Who Holds CTS-I and Who Hires For It
CTS-I is aimed at working installers, lead technicians, installation project leads, and field engineers who are hands-on with rack builds, cable terminations, mounting, signal testing, and system commissioning. Integrators, AV systems contractors, and corporate AV departments commonly list CTS-I as a preferred or required credential for installation supervisor and senior technician roles because it signals field-level competency that a design-only credential does not.
For a closer look at how the credential shows up in job postings and career paths, see CTS-I Jobs and CTS-I Salary Guide 2026: Complete Earnings Analysis. If you're still weighing whether the investment of time and testing fees makes sense for your career stage, Is the CTS-I Certification Worth It? Complete ROI Analysis 2026 walks through the tradeoffs in more depth.
Eligibility and Prerequisites
AVIXA does not let candidates walk in cold. To sit for CTS-I, you must already hold a valid CTS credential, and AVIXA recommends three to four years of AV installation experience before attempting the exam. This is a meaningful gate: CTS-I is explicitly positioned as a specialist-level exam built on top of foundational CTS knowledge, not a parallel entry point.
A full breakdown of the prerequisite chain, documentation requirements, and how AVIXA verifies experience is covered in CTS-I Requirements 2026: Eligibility, Prerequisites & How to Qualify. If your CTS is lapsed or you're unsure whether your installation background counts, that's the place to check before you register.
Key Takeaway
Confirm your CTS status is active before scheduling CTS-I - a lapsed base credential can block your eligibility even if your installation experience is solid.
Exam Format, Fees, and Registration
The CTS-I exam is delivered at Pearson VUE testing centers under AVIXA's administration. Here's the operational breakdown candidates need to plan around:
- Time allowed: 150 minutes
- Question count: 110 total questions, including 10 non-scoring pilot items you can't identify during the test
- Question types: multiple-choice and hotspot items (hotspot questions require you to click a specific location on a diagram or image, which tests practical, visual recognition of installation scenarios rather than pure recall)
- Passing score: a scaled score of 350 on a 0-500 scale
- Eligibility window: 120 days from approval to test
- Fees (U.S.): $490 for AVIXA Premium or Elite members, $590 for nonmembers
Because pilot questions are mixed in unlabeled, there's no way to skip or rush through sections you assume are "just testing." Treat every item as scoring. For the full pricing picture - including how membership tier affects total cost and what add-on expenses to expect - see CTS-I Certification Cost 2026: Complete Pricing Breakdown. For scheduling specifics and how the 120-day window interacts with testing center availability, check CTS-I Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
The Six CTS-I Domains
AVIXA's official exam outline breaks CTS-I into six domains, each representing a phase of the installation project lifecycle. The weighting tells you exactly where to concentrate your preparation.
Domain 1: Implement Pre-Installation Activities (17%)
Covers site verification, reviewing project documentation and drawings, confirming materials and equipment against specifications, and coordinating with other trades before physical work begins.
- Reading and validating installation drawings against actual site conditions
- Verifying equipment deliveries match the bill of materials
Domain 2: Practice Ongoing Project Responsibilities (12%)
Focuses on communication, documentation, safety compliance, and coordination tasks that run throughout the entire installation, not just at one phase.
- Maintaining accurate as-built documentation as work progresses
- Following jobsite safety protocols and change-order procedures
Domain 3: Conduct Site Rough-In/First-Fix (12%)
Covers the early physical work: conduit, cable pathways, backboxes, and infrastructure that has to be in place before finish work happens.
- Cable pathway planning and pull-string/conduit fill considerations
- Coordinating rough-in timing with electrical and construction trades
Domain 4: Install AV Systems (39%)
The single largest domain by far, covering physical installation of displays, racks, speakers, cabling, and terminations, plus signal routing and basic system verification.
- Correct termination practices for various cable and connector types
- Rack layout, cable management, and equipment mounting standards
- Signal flow verification across video, audio, and control paths
Domain 5: Perform AV Systems Closeout (12%)
Covers system testing, client walkthroughs, punch list resolution, and final documentation handoff at project completion.
- Functional testing procedures before client sign-off
- Completing closeout documentation and as-built updates
Domain 6: Conduct Post Project Activities (8%)
The smallest domain, covering warranty terms, maintenance planning, and ongoing support after the installation team leaves the site.
- Understanding warranty scope and manufacturer support terms
- Setting up preventive maintenance expectations with the client
Because Domain 4 alone accounts for nearly four in every ten questions, it deserves proportionally more of your study time than the other five domains combined would suggest at a glance. For a full content breakdown of every domain with more granular subtopics, see CTS-I Exam Domains 2026: Complete Guide to All 6 Content Areas.
| Domain | Weight | Focus Area |
|---|---|---|
| Implement Pre-Installation Activities | 17% | Planning, drawings, materials verification |
| Practice Ongoing Project Responsibilities | 12% | Communication, safety, documentation |
| Conduct Site Rough-In/First-Fix | 12% | Infrastructure, pathways, backboxes |
| Install AV Systems | 39% | Physical install, termination, signal flow |
| Perform AV Systems Closeout | 12% | Testing, punch lists, handoff |
| Conduct Post Project Activities | 8% | Warranties, maintenance, support |
Scoring and What "Passing" Means
CTS-I uses a scaled score rather than a raw percentage-correct system, with a minimum passing score of 350 on a 0-500 scale. Because pilot questions are unscored and unidentified, the visible question count on your screen won't precisely match your final scoring calculation - you simply answer everything as though it counts. A detailed explanation of how the scaled score is derived and what it means relative to raw questions answered correctly is available in CTS-I Passing Score 2026: Exactly What You Need to Pass.
If you're trying to gauge realistically how tough this exam is compared to CTS or other AVIXA credentials, How Hard Is the CTS-I Exam? Complete Difficulty Guide 2026 and CTS-I Pass Rate 2026: What the Data Shows go deeper into difficulty factors without relying on invented numbers.
Mapping a Study Plan to the Domain Weights
Generic study techniques only help if they're pointed at the right material. Given that Install AV Systems is worth more than the next two largest domains combined, a sensible multi-week plan front-loads early weeks on foundational domains and dedicates the largest single block of time to Domain 4.
Pre-Installation and Ongoing Responsibilities
- Review drawing interpretation, material verification, and documentation practices from Domains 1 and 2
Rough-In/First-Fix
- Study conduit, pathway, and backbox standards covered in Domain 3
Install AV Systems (Domain 4)
- Spend the largest block of study time here: termination, rack builds, mounting, and signal verification
Closeout and Post-Project Activities
- Cover Domains 5 and 6: testing procedures, punch lists, warranties, and maintenance
Full-Length Practice and Review
- Take timed practice exams weighted toward Domain 4, then revisit weak domains
For a full week-by-week study guide with more detail on resources and pacing, see CTS-I Study Guide 2026: How to Pass on Your First Attempt. If you just want a compact reference of must-know facts to review the night before your test, CTS-I Cheat Sheet 2026: One-Page Review of Must-Know Facts condenses the key figures and domain weights into one page. Running full-length, timed practice questions on our CTS-I practice test platform is one of the most direct ways to get comfortable with the hotspot format before test day.
Renewal and Keeping CTS-I Active
CTS-I is not a one-and-done credential. It renews on a three-year cycle, and maintaining it requires accumulating 30 renewal units through continuing education, industry participation, or other AVIXA-approved activities. Planning for renewal from the start - rather than scrambling near the deadline - keeps your credential (and the job qualifications tied to it) uninterrupted.
If formal instructor-led or self-paced coursework interests you as part of both initial prep and renewal units, CTS-I Training outlines what's available. Many candidates also use structured practice exams on CTS-I Exam Prep as a low-cost way to refresh domain knowledge between renewal cycles, not just for the initial test.
Frequently Asked Questions
Yes. A valid CTS credential is a hard prerequisite for CTS-I eligibility, along with AVIXA's recommended three to four years of installation experience.
The exam has 110 questions total, including 10 non-scoring pilot questions, to be completed within 150 minutes.
You need a scaled score of 350 out of a possible 500 to pass.
Install AV Systems, which makes up 39% of the exam - by far the largest single domain - deserves the most study time.
The U.S. fee is $490 for AVIXA Premium or Elite members and $590 for nonmembers, and once approved you have a 120-day window to schedule and take the exam.