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If you are preparing for the AAERT CET exam, you need to understand two distinct parts of the certification process: the Knowledge Exam and the Practical Exam.
The Certified Electronic Transcriber (CET) certification tests your ability to understand professional legal transcription standards and apply those standards when producing a transcript from recorded proceedings.
In 2026, the CET Knowledge Exam consists of 157 questions, gives candidates 120 minutes, and requires a score of 80% or higher to pass. After passing the Knowledge Exam, candidates move on to the Practical Exam, which requires producing a transcript from four-channel recorded proceedings within 180 minutes. The current Practical Exam passing standard is 95% for exams taken on or after March 26, 2026.
This guide explains the current AAERT CET exam structure, the 2026 examination blueprint, what each knowledge domain covers, what to expect from the Practical Exam, and how to prepare effectively.
| CET Exam Component | Current Requirement |
|---|---|
| Knowledge Exam | 157 questions |
| Knowledge Exam time limit | 120 minutes |
| Knowledge Exam passing score | 80% |
| Practical Exam | Transcription of digitally recorded proceedings |
| Practical Exam audio | Four-channel audio |
| Practical Exam time limit | 180 minutes |
| Practical Exam passing score | 95% |
| Order of exams | Knowledge Exam first, Practical Exam second |
| Knowledge score validity | 1 year |
| Exam registration validity | Up to 6 months from purchase |
AAERT states that the CET certification requires candidates to pass an online multiple-choice Knowledge Exam and then produce a transcript from a digitally recorded proceeding in the Practical Exam. The two portions take place on different days, and candidates must pass the Knowledge Exam before taking the Practical Exam.
The Certified Electronic Transcriber (CET) credential is designed for professionals who transcribe digitally recorded court and non-court proceedings verbatim.
The CET exam evaluates knowledge and skills related to:
AAERT develops its certification examinations from examination-specification blueprints. The blueprint defines the competency areas covered by the exam and should be a central resource when preparing for the CET.
The current CET Knowledge Exam contains 157 questions.
Candidates have 120 minutes to complete the exam, and an 80% score or higher is required to pass.
The Knowledge Exam covers five major domains:
These percentages come from the current CET Examination Blueprint updated June 29, 2026.
| Knowledge Domain | Percentage of Exam |
|---|---|
| Grammar and Punctuation | 30% |
| Transcript Format | 25% |
| Working as a Legal Professional | 15% |
| Legal System | 15% |
| Terminology | 15% |
| Total | 100% |
This weighting provides an important study guide. Grammar and Punctuation plus Transcript Format account for 55% of the Knowledge Exam, making them two of the most important areas to master.
The first knowledge domain focuses on the professional responsibilities of a legal transcriber.
The current blueprint includes topics such as:
Legal transcription involves sensitive information and professional responsibilities. A CET needs to understand not only how to transcribe words accurately, but also how to handle files, equipment, confidential information, and client assignments responsibly.
Grammar and Punctuation is the largest domain in the current CET blueprint, accounting for 30% of the Knowledge Exam.
The blueprint covers both grammar/editing standards and punctuation standards.
Candidates should understand:
This distinction is especially important.
A legal transcriber is not a literary editor whose job is to rewrite testimony so that it sounds more polished. The goal is to create an accurate, readable, and appropriately formatted record while preserving the substance of what was said.
“Well, I—I don't remember exactly. Maybe Tuesday.”
A literary editor might rewrite the statement for smoother reading.
A legal transcriber, however, must follow the applicable transcription standards rather than rewriting testimony simply because another version sounds better.
For CET preparation, grammar study should therefore focus on how grammar and punctuation are applied in transcripts, not only on general English grammar rules.
Transcript Format represents 25% of the current CET Knowledge Exam blueprint.
This domain is particularly important because it connects the Knowledge Exam with the Practical Exam.
The current blueprint covers topics including:
AAERT has adopted the Federal Transcript Format for the CET Practical Exam.
However, candidates should remember that actual professional assignments may have different formatting requirements depending on the court, jurisdiction, contract, or client. The federal format is the standard used for the CET Practical Exam.
The Legal System domain represents 15% of the current CET blueprint.
Candidates need enough knowledge of legal and quasi-legal proceedings to understand the material they are transcribing.
The current blueprint includes:
A transcriptionist does not need to be a lawyer. However, understanding what is happening in a proceeding makes it easier to identify speakers, understand terminology, follow the sequence of events, and apply appropriate transcript conventions.
Terminology accounts for 15% of the CET Knowledge Exam.
The current blueprint specifically identifies:
Candidates should be familiar with basic terminology commonly heard in judicial proceedings.
The goal is not necessarily to memorize every legal or medical word that could appear in a proceeding. Strong preparation also involves learning how to recognize unfamiliar terms and use appropriate reference materials to verify them.
Passing the Knowledge Exam allows you to move to the second part of the CET certification process: the Practical Exam.
The Practical Exam is designed to evaluate whether you can apply the knowledge and transcription standards you have studied while working with recorded proceeding audio.
AAERT states that candidates receive instructions for scheduling the Practical Exam after receiving a passing Knowledge Exam result.
The CET Practical Exam requires candidates to produce a transcript from a four-channel digital audio recording.
The current AAERT instructions state that candidates produce a PDF transcript in federal format containing the required transcript components, including:
Candidates have 180 minutes from the time the exam launches to complete and submit the transcript.
Four-channel audio allows candidates to work with multiple audio channels from a recorded proceeding.
The practical exam can therefore require candidates to manage issues such as:
This is why practicing only with clean, single-speaker recordings is not enough for serious CET preparation.
For CET Practical Exams taken on or after March 26, 2026, the passing score is 95%.
AAERT changed the Practical Exam passing standard from 98% to 95% effective March 26, 2026. The change followed a psychometric review and stakeholder consultation.
The change in the passing percentage does not mean that the exam no longer emphasizes accuracy. Candidates still need to demonstrate the ability to produce a professional transcript that meets the required standards.
The two CET portions have different time limits:
Because the Knowledge and Practical portions take place separately, CET preparation should address both knowledge and applied transcription skills.
A passing Knowledge Exam result is valid for one year.
Candidates should also distinguish this from exam registration validity. AAERT states that exam registrations are valid for up to six months from the date of purchase.
In other words:
Candidates should always check their current AAERT registration and exam instructions for the requirements that apply to their specific registration.
If you pass the Knowledge Exam but do not pass the Practical Exam, you do not need to repeat the Knowledge Exam simply because you failed the Practical portion.
AAERT's current policies provide for a Practical Exam retake. Candidates should review the current AAERT retake requirements and fees before registering again.
Several current 2026 updates are important for CET candidates.
Beginning March 26, 2026, AAERT moved CET Knowledge Exams from RealTime Coach to its new AAERT Knowledge Exam Platform.
The change was designed to improve the candidate experience and reduce technical disruptions. AAERT also introduced options for many candidates to choose between online and in-person testing.
The CET Practical Exam passing score changed from 98% to 95% for exams taken on or after March 26, 2026.
The June 29, 2026 CET Examination Blueprint organizes the Knowledge Exam into five domains:
Terminology is important, but it represents only 15% of the current blueprint.
Grammar and Punctuation account for 30%, while Transcript Format accounts for 25%.
That means these two domains together represent 55% of the Knowledge Exam.
Knowing ordinary English grammar is useful, but CET candidates also need to understand how grammar, punctuation, spelling, numbers, abbreviations, interruptions, and other elements are handled in transcripts.
Professional legal proceedings can involve multiple speakers, interruptions, varying audio quality, and different speaking speeds.
Practice should gradually introduce more realistic audio and multi-channel conditions.
A candidate can have strong listening and typing skills and still struggle with the CET if they do not understand federal transcript formatting and other transcript conventions.
Speed is useful, but accuracy and consistency are essential.
Effective practical preparation should build:
A strong CET preparation strategy should follow the current blueprint instead of treating every subject as equally important.
Use the current CET blueprint as your study roadmap.
Identify the five knowledge domains and pay particular attention to the two largest:
Practice transcript-specific applications of:
Learn the federal transcript format and understand how to handle:
These topics are specifically identified in the current blueprint.
Develop a working understanding of legal proceedings, courtroom roles, case types, jurisdiction, venue, case citations, and common legal, Latin, and medical terminology.
Don't wait until the Knowledge Exam is complete to begin practical preparation.
Practice working with:
The Practical Exam is time-limited.
Your preparation should therefore include full-length practice sessions where you complete the transcript, review it, and prepare the final submission within the available time.
The CET exam can be challenging because it tests more than typing speed.
Candidates need to understand grammar, punctuation, transcript formatting, professional responsibilities, legal procedures, terminology, and the practical process of producing a transcript from recorded proceedings.
The current blueprint also shows why preparation should be balanced. Grammar and Punctuation and Transcript Format together account for 55% of the Knowledge Exam.
The Practical Exam adds another challenge: candidates must apply these skills accurately while working within a 180-minute time limit.
Transcription Certification Institute (TCI) is currently listed by AAERT among its approved schools/courses for transcription and certification-exam preparation. AAERT also makes clear that its listing of schools does not constitute an endorsement of a particular school, product, resource, or service.
TCI's AAERT CET Preparation Course is designed to help students prepare for the areas covered by the CET examination, including transcript formatting, legal terminology, court-proceeding concepts, practice audio, and exam preparation.
The goal of preparation is not simply to memorize information. It is to build the ability to recognize the correct transcription decision and apply it accurately when working with legal audio.
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The AAERT CET exam is designed to test both knowledge and practical transcription ability.
The current Knowledge Exam contains 157 questions, takes 120 minutes, and requires an 80% passing score. The current blueprint places the greatest emphasis on Grammar and Punctuation (30%) and Transcript Format (25%).
After passing the Knowledge Exam, candidates complete the Practical Exam using four-channel recorded audio and must produce the required transcript within 180 minutes. For exams taken on or after March 26, 2026, the Practical Exam passing score is 95%.
The most effective preparation strategy is therefore not simply to increase typing speed or memorize legal terminology. It is to understand the current blueprint, master transcript-specific grammar and formatting, develop legal and professional knowledge, and repeatedly practice applying those skills to realistic audio under timed conditions.
Before registering or preparing for the exam, always check AAERT's current exam instructions and blueprint because certification requirements and professional standards can change.
The current CET Knowledge Exam has 157 questions. Candidates have 120 minutes to complete it and must score 80% or higher to pass.
The Knowledge Exam requires a score of 80% or higher.
For the Practical Exam, the passing score is 95% for exams taken on or after March 26, 2026.
No. You must pass the Knowledge Exam before taking the Practical Exam. AAERT requires the two portions to be taken separately.
Candidates have 180 minutes to complete and submit the Practical Exam transcript.
The Practical Exam uses a four-channel digital audio recording. Candidates produce a transcript from the recorded proceeding using the required federal format.
AAERT has adopted the Federal Transcript Format for the CET Practical Exam. The final transcript includes required components such as a title page, index page, transcript, and certificate.
A passing Knowledge Exam result is valid for one year.
This should not be confused with exam registration validity, which AAERT states is up to six months from the date of purchase.
You can retake the Practical Exam without repeating the Knowledge Exam, subject to AAERT's current retake and registration requirements.
Grammar and Punctuation is the largest domain at 30% of the Knowledge Exam.
Transcript Format is second at 25%.
Together, they represent 55% of the current blueprint, making them especially important preparation areas.
Yes. AAERT changed the passing score from 98% to 95%, effective for Practical Exams taken on or after March 26, 2026.
Yes. Beginning March 26, 2026, AAERT moved CET Knowledge Exams to its new Knowledge Exam Platform.
No. The Federal Transcript Format is the standard AAERT uses for the CET Practical Exam. Actual professional assignments can have different formatting requirements based on the court, jurisdiction, client, contract, or assignment.
TCI is currently listed on AAERT's Approved Schools/Courses page. However, AAERT states that its listing of schools and courses does not constitute an endorsement of a particular provider.
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