CBET Exam 2026: Your Complete Certified Biomedical Equipment Technician Guide
The Certified Biomedical Equipment Technician (CBET) is the gold-standard credential for biomedical equipment technicians (BMETs) in the United States. Issued by the Association for the Advancement of Medical Instrumentation (AAMI) through its independent AAMI Credentials Institute (ACI, successor to the International Certification Commission / ICC), the CBET proves you can install, calibrate, troubleshoot, and repair the medical devices that hospitals depend on - from infusion pumps and ventilators to defibrillators, surgical lasers, and patient monitoring systems.
CBET holders work across U.S. hospitals, third-party biomedical service organizations (TRIMEDX, Agiliti, Sodexo, Crothall Healthcare, GE HealthCare), the VA, and the Department of Defense. CBET is the core credential in the ACI ladder - CABT (entry) -> CBET -> CRES (radiology) -> CHTM (management) - and the single most requested certification in BMET job postings.
This guide covers everything, verified against the 2026 ACI Certification Candidate Handbook: the 165-question exam format, the 6 content domains (with Healthcare IT at a heavyweight ~17%), full-status vs candidate-status eligibility (the old "4 pathways with a zero-experience route" model is gone), the May and November testing windows with 2026-2027 deadlines, the military METC-to-civilian BMET path, the 60-day retake rule, renewal by CEUs, salary data from the Bureau of Labor Statistics, and a free 90-day study plan mapped to the official content outline.
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CBET Exam Format at a Glance
| Spec | Detail |
|---|---|
| Total questions | 165 multiple choice (closed book) |
| Time limit | 3 hours |
| Passing standard | Criterion-referenced cut score set by the modified Angoff method; ACI publishes no fixed cutoff. Widely cited estimates put the raw pass mark near 116 of 165 (about 70%) |
| AAMI member exam fee (2026) | $410 |
| Non-member exam fee (2026) | $460 |
| Retake fee | $355 member / $405 non-member (non-refundable) |
| Testing windows | Twice a year: May 1-15 and November 1-15 |
| Delivery | Computer-based at Kryterion test centers (in-person only - CBET is not offered online) |
| Allowed materials | A simple calculator; no phones or internet-capable devices |
| Results | Official results within 45 days of the testing window closing (up to 60 days when new exam forms debut); preliminary results do not determine certification |
| Renewal | Every 3 years with 30 Continuing Education Units (CEUs) per cycle |
| Pass rate | Not published by ACI |
Fees are paid to the AAMI Credentials Institute (ACI). Cancellations requested by the posted deadline (April 25 for May exams, October 25 for November exams) are refunded minus a $100 processing fee. Confirm current pricing on the AAMI certifications page before applying.
2026-2027 testing windows and deadlines
| Testing window | Application deadline | Late registration (adds $50) |
|---|---|---|
| November 1-15, 2026 | October 16, 2026 | October 23, 2026 |
| May 1-15, 2027 (applications open late January 2027) | April 16, 2027 | April 23, 2027 |
You can reschedule your appointment once within the same testing window, up to five business days before the exam, directly in your Kryterion WebAssessor account at no charge. Rescheduling inside five business days is not allowed - if you cannot attend, all exam fees are forfeited, and a no-show forfeits them too.
CBET Eligibility: Full Status vs Candidate Status
Older guides describe a "4-pathway" model in which a biomedical-technology associate degree alone qualified you with zero experience. That model is retired. Under the current ACI Certification Candidate Handbook, there are three full-status routes - all of which include work experience - plus a candidate status that lets you test early.
Full certification (meet ONE)
| Route | Requirement |
|---|---|
| 1 | Associate degree or higher in an electronics, technology, or science program AND 2 years of full-time BMET work experience |
| 2 | Completion of a U.S. military biomedical equipment technology program AND 2 years of full-time BMET work experience |
| 3 | 4 years of full-time BMET work experience (any education background) |
Candidate status (meet ONE)
- Associate degree or higher in an electronics, technology, or science program; OR
- Completion of a U.S. military biomedical equipment technology program; OR
- 2 years of full-time BMET work experience
Candidate status is how new graduates sit the exam before they have the required experience. If you pass, ACI confirms you as a "candidate," and you get five years to finish the full-status requirements. Once you do, you submit the Certification Upgrade Form with a $25 fee and your credential converts to full certification.
Important rules:
- The work experience must be BMET work specifically - general electronics or IT work does not count
- Work experience is verified as part of the application
- Applications go through the AAMI store and must be complete by the posted deadline for your testing window
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The 6 CBET Content Domains (2026 ACI Handbook)
The current CBET content outline, published in the 2026 ACI Certification Candidate Handbook, organizes the 165-item exam around 6 domains. Healthcare Information Technology - added in 2017 when the exam grew from 150 to 165 questions - now carries roughly 17%, which older 5-domain study guides still miss.
| # | Domain | Weight | Items (~165) | Sample Topics |
|---|---|---|---|---|
| 1 | Healthcare Technology and Function | ~30% | ~50 | Physiological monitors, telemetry, fetal monitors, EtCO2/NIBP/oximetry parameters, defibrillators, ventilators, anesthesia machines, infusion and syringe pumps, ESUs, sterilizers, lab equipment, test equipment (safety analyzers, simulators) |
| 2 | Healthcare Technology Problem Solving | ~30% | ~50 | Fault isolation in modules and power supplies, prioritizing repairs by risk and downtime, device error vs use error, localized vs system-wide network faults, corrective actions by device class, staff education |
| 3 | Healthcare Information Technology | ~17% | ~28 | HIPAA/NIST/HITRUST and HHS cybersecurity performance goals, hardware and software troubleshooting, routers/switches/access points/VLAN/LAN/WAN/cloud, PING and cable tracers, device-to-EMR integration and middleware, IP and MAC addressing |
| 4 | Public Safety in the Healthcare Facility | ~10% | ~17 | NFPA 99 and IEC 60601 electrical safety, micro/macro shock, GFCI, hazard signage (laser, MRI, ionizing radiation), infection control and PPE, CMS and accrediting organizations, ANSI/AAMI EQ56/EQ89/EQ93/EQ103, CMMS documentation |
| 5 | Anatomy and Physiology | ~7% | ~12 | Circulatory, respiratory, gastrointestinal, nervous, musculoskeletal, and endocrine systems; major organs (heart, lungs, brain, skin); medical terminology |
| 6 | Fundamentals of Electricity and Electronics | ~6% | ~10 | Ohm's law, voltage/resistance/current/power, active and passive devices, schematic troubleshooting, LIM, transformers, batteries, UPS |
What this weighting means strategically
The top two domains (Function + Problem Solving) make up about 60% of the exam - roughly 100 of 165 questions. Healthcare IT is the third-largest domain at ~17% (~28 items), and many veteran BMETs underprep it because the pre-2017 CBET had no IT domain at all. Electronics fundamentals is only ~6% (~10 items) in the current outline, which surprises career electronics technicians - do not over-study Ohm's law at the expense of healthcare IT and troubleshooting workflows. Anatomy and physiology is just ~7%, but it is high-leverage for the time invested - the outline names exactly six body systems, and basic terminology is fast to memorize.
Healthcare Information Technology Deep Dive (~17% Domain)
The Healthcare IT domain is where the current exam most differs from older prep books. The 2026 outline is practical and hands-on - closer to a hospital IT help desk plus device integration than to abstract standards trivia. Master these five areas:
Protected Data and Cybersecurity
- HIPAA as it applies to devices that store or transmit patient data
- NIST Cybersecurity Framework, HITRUST, and the HHS Cybersecurity Performance Goals
- Practical hygiene: patching, passwords, phishing awareness, network segmentation for medical devices
Hardware Troubleshooting
- Power supplies, peripherals, hard drives, cables, and connectors
- Recognizing when a "broken device" is actually a failed COTS computer component
System Software
- Troubleshooting, updating, and patching Windows, Office, Linux, and Unix systems that host clinical applications
Networking
- Routers, switches, access points and controllers, KVMs, virtual servers, LAN/WAN, and cloud computing
- Diagnostic tools and processes: PING, cable tracers, and common networking commands
- Basic identifiers: IP addressing and MAC addresses - know the difference cold
EMR and Device Integration
- Integrating medical devices to the EMR directly or through middleware
- Context that helps: HL7 result feeds and DICOM imaging transfers are the common integration languages you will encounter on the job
If you walk into the exam unable to explain what PING tells you, how a device reaches the EMR through middleware, or which framework the hospital security team is quoting, you will give away points in the third-largest domain.
Military to Civilian BMET: The METC Path
The U.S. military is one of the largest pipelines into civilian BMET careers. All branches train biomedical equipment technicians through the joint program at the Medical Education and Training Campus (METC) at Joint Base San Antonio - Fort Sam Houston, and ACI explicitly recognizes U.S. military BMET program completion in both eligibility tiers.
Military BMET programs recognized by ACI
| Branch | Specialty | Training |
|---|---|---|
| Army | 68A Biomedical Equipment Specialist | METC joint BMET program (about 41 weeks) |
| Navy | Hospital Corpsman - Biomedical Equipment Technician | METC joint BMET program |
| Air Force | 4A2X1 Biomedical Equipment | METC joint BMET program |
How eligibility works for service members:
- Military BMET program plus 2 years of full-time BMET work (active-duty BMET time counts) = full status
- Military BMET program alone = candidate status - you can test immediately and have five years after passing to accrue the experience
Funding for veterans and active duty
- The Post-9/11 GI Bill reimburses licensing and certification test fees, including CBET
- DoD COOL (Army, Navy, Air Force) funds credentialing exam fees for eligible service members while still in uniform
Large biomedical service organizations (TRIMEDX, Agiliti, Sodexo, Crothall Healthcare, GE HealthCare) and hospital systems actively recruit military-trained BMETs, and the CBET is the credential that translates that training for civilian hiring managers.
The ACI Credential Ladder: CABT, CBET, CRES, CHTM, CISS
ACI's current credential lineup (per the 2026 handbook) has five programs. The CLES (Certified Laboratory Equipment Specialist) exam was discontinued after 2018 - existing CLES holders can still renew, but no new CLES exams are offered, so ignore older articles that pitch a CBET-to-CLES track.
| Credential | Full Name | Best For | Exam Format | 2026 Fee (member/non-member) |
|---|---|---|---|---|
| CABT | Certified Associate in Biomedical Technology | Students and career changers entering HTM | 100 Qs, 2 hrs, online proctored, year-round | $220 / $270 |
| CBET | Certified Biomedical Equipment Technician | General BMETs (the core credential) | 165 Qs, 3 hrs, Kryterion centers, May + November | $410 / $460 |
| CRES | Certified Radiology Equipment Specialist | Imaging specialists (X-ray, CT, fluoro) | 165 Qs, 3 hrs, Kryterion centers, May + November | $410 / $460 |
| CHTM | Certified Healthcare Technology Manager | Supervisors and managers leading HTM teams | 100 Qs, 2 hrs, Kryterion centers, May + November | $490 / $565 |
| CISS | Certified Industrial Sterilization Specialist | Industrial sterilization professionals | Core: 75 Qs, 2 hrs; Specialty: 50 Qs, 1 hr | $325 / $375 each |
Notes on the ladder:
- CABT is non-renewable and valid for five years - it is designed as a stepping stone; by expiration you should have the experience to sit for CBET or CRES
- A mid-career BMET who adds CRES typically commands a premium because imaging equipment is capital-intensive and harder to staff
- CHTM requires management-level experience (for example, a current CBET/CRES/CCE credential plus recent HTM supervisory experience) - check the handbook before applying
Your 90-Day FREE CBET Study Plan
| Week | Focus | Hours | Tasks |
|---|---|---|---|
| 1 | Anatomy and physiology + medical terminology (~7%) | 6-8 | Master the six systems the outline names (circulatory, respiratory, GI, nervous, musculoskeletal, endocrine); build flashcards for prefixes/suffixes; connect diseases to monitored vitals (HR, BP, SpO2, EtCO2) |
| 2 | Electricity and electronics fundamentals (~6%) | 6-8 | Ohm's law drills, active vs passive devices, schematic reading, LIM/transformers/batteries/UPS - keep this concise; only ~10 items on the exam |
| 3 | Public safety in the healthcare facility (~10%) | 8-10 | NFPA 99 risk categories, IEC 60601 electrical safety and leakage limits, GFCI, hazard signage, infection control/PPE, CMS and accreditation, ANSI/AAMI EQ standards, CMMS use |
| 4-5 | Healthcare information technology (~17%) | 14-18 | HIPAA/NIST/HITRUST/HHS goals, hardware and OS troubleshooting, networking components and PING/cable tracers, EMR integration and middleware, IP vs MAC |
| 6-8 | Healthcare technology and function (~30%) | 20-26 | One device class per session: monitoring (ECG, telemetry, fetal), parameters (EtCO2, NIBP, IBP, oximetry), respiratory (vents, anesthesia), cardiac (defibs, pacers, balloon pumps), surgery (ESUs, tables, lights), infusion, sterilization, lab equipment, test equipment |
| 9-11 | Healthcare technology problem solving (~30%) | 18-22 | Fault trees for each device class, risk-based repair prioritization, device error vs use error, local vs system-wide network faults, documentation and staff education |
| 12-13 | Full-length practice exams + weak-spot review | 12-15 | Take 4-6 timed 165-question practice exams; review every wrong answer against the AAMI Core Curriculum and the handbook outline |
Total prep: 80-100 hours over 12-13 weeks. Schedule your window early - seats at Kryterion centers are first come, first served, and ACI warns you may otherwise travel up to a hundred miles.
Free / Low-Cost Resources
- ACI Certification Candidate Handbook 2026 (PDF) - the official rules and the full CBET content outline; free and the single most important download
- AAMI CBET Certification Page - official eligibility and outline summary
- AAMI CBET Study Course (online) and the AAMI Core Curriculum for Biomedical Equipment Technicians - the official paid prep; the Core Curriculum is the primary source ACI item writers use
- NFPA 99 Health Care Facilities Code - free online viewing with registration
- IEC 60601-1 Medical Electrical Equipment - abstract free; full standard paid
- BMET Wiki - community-maintained reference
- Mometrix CBET Secrets Study Guide and flashcards - solid third-party practice questions
CBET Salary in 2026: What the Data Says
Anchor your expectations to the Bureau of Labor Statistics. For medical equipment repairers (SOC 49-9062), BLS reports a median annual wage of $62,630 (May 2024) - the bottom 10% earned under $39,060 and the top 10% earned over $99,290. Hospital-employed technicians did best, with a $74,560 median.
Certification moves you up inside those bands. Typical posted ranges in 2026 (market estimates - they vary by region and employer):
| Role | Typical 2026 Range | Notes |
|---|---|---|
| Entry-level BMET I (no CBET) | $45,000-$60,000 | Hospital staff or third-party service organization |
| BMET II with CBET | $60,000-$80,000 | Independent on most general devices |
| Senior BMET / BMET III | $75,000-$95,000 | Leads PM programs, mentors juniors |
| Imaging specialist (CBET + CRES) | $85,000-$115,000 | Premium for capital-equipment risk |
| HTM manager (often CHTM) | $100,000-$150,000 | Manages BMET team and budget |
Large integrated delivery networks (Kaiser, HCA, Ascension, CommonSpirit) and academic medical centers generally pay above community-hospital baselines; third-party service organizations often trade slightly lower base pay for faster promotion and travel.
Common CBET Mistakes (And How to Avoid Them)
Mistake 1: Skipping Healthcare Information Technology
The IT domain was added in 2017 - when the exam expanded from 150 to 165 questions - and now carries ~17% (~28 items), third-largest on the exam. BMETs who certified or trained before then often skip it entirely. Expect items on HIPAA and the NIST framework, network components and diagnostic tools (PING, cable tracers), OS patching, EMR integration through middleware, and IP vs MAC addressing. Spend at least 15 hours on healthcare IT specifically.
Mistake 2: Confusing IEC Patient-Applied Part Classifications
IEC 60601-1 defines three applied-part types: B (body), BF (body floating), and CF (cardiac floating). CF parts have the strictest limits - 10 microamps patient leakage in normal condition - because they can connect directly to the heart. B and BF allow 100 microamps in normal condition. Memorize the three classifications and their limits; this is reliable point territory.
Mistake 3: Memorizing NFPA 99 Without Understanding Categories
NFPA 99 classifies systems by risk: Category 1 (failure likely to cause major injury or death) through Category 4 (no impact on patient care). The exam tests application, not the table - "A medical-surgical vacuum system serving an OR is what category?" (Answer: Category 1.) Practice category-assignment scenarios.
Mistake 4: Mixing Up PM vs Inspection vs Calibration
Preventive maintenance (PM) = scheduled work to prevent failures. Inspection = visual/functional check, usually a subset of PM. Calibration = adjustment to bring a device within manufacturer specs. Verification = confirming a device meets specs WITHOUT adjustment.
The exam asks definitional questions on these distinctions - get them cold, and know how each is documented in the CMMS.
Mistake 5: Not Using the AAMI Core Curriculum
Third-party question banks are good practice, but the AAMI Core Curriculum is the primary source ACI uses to write items. If you read only third-party guides, you will miss device-specific terminology that AAMI uses verbatim in stems and answer choices. At minimum, study the free handbook outline line by line - every lettered sub-topic is fair game.
Retake Policy and Renewal
Retakes: You cannot schedule a retake until ACI officially notifies you of your result. After a fail, you must wait at least 60 days to retest, and you may attempt the exam no more than 3 times within any 2-year period. Fail the third attempt and you must wait one full year before reapplying. There is no refund for failed exams, but retakes are discounted: $355 member / $405 non-member.
Renewal: CBET certification runs on a 3-year cycle. To renew, accumulate 30 Continuing Education Units (CEUs) during the cycle - one CEU equals one hour of qualifying activity (education, teaching, presenting, leadership roles, and documented HTM work all count) - and pay the renewal fee ($100 member / $150 non-member, plus $50/$75 for each additional ACI credential) by December 31 of your expiration year. Miss the deadline and your certification goes "Expired," with a grace period to March 31 and a $100 reactivation fee; after that it lapses and you must retest at full price.
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Test-Day Strategy
Before You Click Start
- Bring two forms of ID - one must be a government-issued photo ID (passport, driver's license, military ID); the second can be a credit card, debit card, or employee badge. A Social Security card is NOT acceptable
- Bring your confirmation email with the exam launch code, and arrive at least 15 minutes early - late arrivals are treated as no-shows and forfeit all fees
- Bring a simple calculator - it is explicitly allowed; phones and internet-capable devices are not
- Score 80%+ on at least three full-length 165-question practice exams before your window opens
During the 3 Hours
- First pass (90 minutes): about 33 seconds per question. Answer confident questions; flag anything taking more than 60 seconds
- Second pass (60 minutes): return to flagged items, especially calculations and IEC/NFPA standards questions
- Final pass (30 minutes): verify all 165 are answered - there is no penalty for guessing - and change answers only with a clear reason
Golden rule: when two answers seem correct, pick the one that matches the standard cited in the question stem (NFPA 99, IEC 60601, ANSI/AAMI EQ standards, manufacturer service manual). ACI writes from primary standards, not textbook paraphrases. And use the comment feature if a question seems flawed - ACI reviews comments that could affect pass/fail decisions before scoring.
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