What Is CAT Certification?

What the CAT Credential Actually Is

CAT stands for Commercial Audio Technician, a specialty certification offered through ETA International. It validates that a technician can work on the design, installation and troubleshooting of speech and music sound systems in commercial and institutional environments. Think conference rooms, houses of worship, schools, auditoriums, retail spaces, and any building where voices and music have to reach a whole room clearly.

ETA classifies CAT at the Journeyman level. That placement matters: it signals the credential is aimed at working technicians who already have a baseline in electronics, not at complete beginners. If you have seen other credentials that use the same three letters, set them aside. This article, and this site, deal only with the ETA Commercial Audio Technician certification. For the short-form definitions, see our pages on what CAT stands for and CAT meaning.

The CETa Prerequisite You Can't Skip

The single most important structural fact about CAT is that it is not a stand-alone credential. ETA's CAT competency document states that Associate Certified Electronics Technician (CETa) certification must be acquired first. In practical terms, your path looks like this:

1. Earn CETa certification.
2. Prepare for the CAT competency categories.
3. Sit the CAT examination.

Budget accordingly. The $80 CAT exam fee does not include whatever you spend on the CETa prerequisite, so your real entry cost is higher than the headline number. We break the full picture down in our CAT certification cost guide, and the eligibility details are covered in CAT requirements.

Exam Format, Fee and Retake Rules

The CAT exam is a straightforward knowledge test. There is no hands-on assessment component, so everything you demonstrate happens through the written exam.

Two hours for 100 questions works out to roughly 72 seconds per question. That is comfortable for recall items but tight for calculation items such as impedance, power and decibel problems, so practice those until the arithmetic is automatic. Seventy-five percent means you can miss up to 25 questions; see CAT passing score for how to think about that margin.

The free retake is a genuine safety net, but it has a clock on it: it must be used within one year of your first examination session. If your first attempt falls short, review your weakest categories right away rather than letting the window drift. Our look at how hard the CAT exam is covers where candidates tend to struggle.

The Eight Competency Categories

ETA's competency document organizes the exam content into eight major categories. ETA does not publish a percentage weighting for them, so no single category should be assumed to dominate. Prepare for all eight. A full walkthrough lives in our CAT exam domains guide; here is what each one means for a working technician.

Registration and Test-Day Mechanics

Testing is proctored through an ETA Certification Administrator. Two delivery methods are used: Trapeza online testing or traditional paper and pencil. The standard Trapeza route requires an onsite administrator, so plan to test where an administrator is available. ETA also offers a distinct remote-proctoring route through ExamRoom.AI for candidates who cannot reach an administrator.

Bring the following:

• Photo identification, which is required
• A nonprogrammable scientific calculator, which is permitted and genuinely useful for decibel and power math
• Scratch paper is allowed under ETA's general examination rules, and used sheets are surrendered afterward

Scheduling specifics vary by administrator, so see CAT exam dates and scheduling for how to approach it.

Where CAT Holders Work

Because the credential centers on speech and music systems in commercial and institutional settings, the natural employers are organizations that install, service or operate those systems:

• Audio-visual integrators installing sound systems in offices, schools and venues
• Electrical and low-voltage contractors who add sound work to their service lines
• Facilities and maintenance departments at campuses, hospitals and large buildings that own their own paging and sound infrastructure
• Houses of worship and performance venues that employ or contract technicians for system upkeep
• Service companies handling repair and troubleshooting calls on installed systems

The certification does not guarantee any particular role or pay level, and we avoid quoting figures that aren't published. For a grounded discussion of career value, read our CAT salary guide, whether CAT certification is worth it, and the overview of CAT jobs.

Keeping the Credential Active for Four Years

CAT certification runs on a four-year term. ETA places it under its general Maintenance track, not the "Maintenance with Hands-On" track. To renew, you submit the maintenance form and satisfy both of these:

• Continuing education: 10 hours per year (40 hours across four years), or qualifying supervisor-completed employer verification
• Fees: $25 per year, totaling $100 over the four-year cycle

Sequencing Your Preparation

Rather than a generic study schedule, order your weeks around how the eight categories build on one another. Each later topic leans on the earlier ones, so this sequence reduces re-learning. For a fuller plan, use the CAT study guide.

If you want a condensed refresher near test day, the CAT cheat sheet collects the must-know facts, and you can gauge your readiness against real exam-style items in the CAT practice questions. Context on historical outcomes is in our CAT pass rate discussion.

Frequently Asked Questions

For a broader orientation to the credential, you can also revisit what CAT certification is and our CAT training overview as you plan your next steps.