- What Is A BEE-AC, Exactly?
- Who Issues the Credential and Why It Matters
- The 12 Domains a BEE-AC Covers
- Exam Format, Equipment, and What Test Day Looks Like
- Who Can Sit For It
- Cost, Passing Score, and Renewal Mechanics
- Who Hires People With This Credential
- Building a Domain-Aware Prep Plan
- Frequently Asked Questions
- A BEE-AC is a proctored, hands-on performance assessment covering 12 AC electricity and electronics domains.
- The exam requires a Nida 130E (or later) trainer, a multimeter, a function generator, and an oscilloscope.
- Passing score is 70%, and the exam fee is USD 100 per certification.
- Certification is valid for 3 years, renewable through work verification, credits, or a knowledge exam.
What Is A BEE-AC, Exactly?
A BEE-AC - Basic Electricity and Electronics, Alternating Current - is a performance-based certification that verifies a technician can safely measure, troubleshoot, and reason about AC circuits, not just recite theory from a textbook. Unlike a purely multiple-choice knowledge test, the BEE-AC is a proctored, in-person assessment where a candidate physically demonstrates skills on real test equipment. That distinction is the single most important thing to understand before you start preparing, and it's covered in more depth in our What Is BEE-AC? overview.
If you're comparing this credential to other certifications you've seen online, start with a clear definition. Our companion pieces BEE-AC Meaning and What Does BEE-AC Stand For? walk through the terminology in plain language, while What Is BEE-AC Certification? explains how the credential fits into a broader technician career path.
Who Issues the Credential and Why It Matters
The BEE-AC is issued by Certifying Technical Employee Competence (CertTEC), a division of SpaceTEC Partners, Inc. CertTEC publishes its exam specifications through a catalog maintained by SPI, most recently revised March 1, 2025. Because CertTEC's catalog defines the exact domains, equipment, and scoring thresholds, it's worth treating that catalog - not generic exam-prep folklore - as the source of truth when you plan your study time.
For a full breakdown of the organization's structure and how the certification is positioned relative to related credentials, see BEE-AC Certification. If you landed here after seeing the acronym elsewhere, our direct answer pages - What Is A BEE-AC? and What Does BEE-AC Mean? - clarify exactly which credential this is before you spend money on the exam fee.
The 12 Domains a BEE-AC Covers
CertTEC's published AC competency topics break the exam into twelve domains. Understanding these domains - not generic "AC theory" - is what separates candidates who pass from those who get surprised on test day. A full walkthrough of every domain, with worked examples, lives in our BEE-AC Exam Domains 2026: Complete Guide to All 12 Content Areas, but here's the landscape:
Domain 1: Principles of Alternating Current
Core AC theory: waveform generation, frequency, period, phase relationships, and how AC differs fundamentally from DC.
- Reading and interpreting sine wave characteristics on an oscilloscope
Domain 2: Electronic Components and Terms
Identification and function of common components and the vocabulary used to describe circuit behavior.
- Matching component symbols to physical parts on a test board
Domain 3: Principles of Inductance
How inductors store energy in a magnetic field and how inductance affects current in an AC circuit.
- Calculating inductive reactance at a given frequency
Domain 4: Transformer Theory
Turns ratios, step-up/step-down behavior, and - critically for the practical portion - diagnosing transformer winding faults.
- Using a multimeter to isolate a shorted or open winding
Domain 5: Principles of Capacitance
Capacitor charge/discharge behavior and capacitive reactance in AC circuits.
- Predicting phase shift introduced by a capacitor
Domain 6: AC Generator Theory
How alternators produce AC voltage, including basic construction and operating principles.
- Relating rotor speed to output frequency
Domain 7: AC Motor Theory
Operating principles of common AC motor types and how they're driven by alternating current.
- Distinguishing motor behavior under load versus no-load conditions
Domain 8: RC, RL, and RCL Principles
Combined resistor-capacitor-inductor circuit behavior - one of the heaviest practical-skills domains on the exam.
- Troubleshooting an RC or RL circuit to find a faulted component
Domain 9: Cabling
Cable types, terminations, and practices relevant to AC circuit wiring.
- Identifying correct cable/connector choices for a given application
Domain 10: Test Equipment and Measurements
Correct setup and use of the multimeter, function generator, and oscilloscope required for the practical exam.
- Configuring instruments before taking a waveform measurement
Domain 11: Basic Electrical Safety Precautions
Personal and equipment safety practices required any time you're working with live AC circuits.
- Applying lockout/verification steps before touching a circuit under test
Domain 12: Mathematics and Formulas
The applied math that underlies every other domain - reactance, impedance, and circuit calculations.
- Solving for total impedance in a series RCL circuit
Because the practical portion emphasizes instrument setup, waveform measurements, transformer winding faults, and RC/RL troubleshooting, Domains 4, 8, and 10 deserve outsized attention relative to their single-line listing in the catalog - a nuance covered further in the domains guide linked above and in our analysis of How Hard Is the BEE-AC Exam? Complete Difficulty Guide 2026.
Exam Format, Equipment, and What Test Day Looks Like
The BEE-AC is delivered as a proctored, in-person performance assessment, administered through SPI's online Examination Management System. This isn't a bubble-sheet or click-through test - you will be physically working with hardware while a proctor evaluates your process and results.
Required equipment for the assessment includes:
- Two CertTEC assessment circuit cards per discipline
- A Nida 130E or later trainer
- A multimeter
- A function generator
- An oscilloscope
Key Takeaway
Because the exam is equipment-based, familiarity with instrument setup matters as much as knowing formulas. Practice physically configuring a multimeter, function generator, and oscilloscope before test day - reading about them is not the same as operating them under time pressure.
Passing requires a score of 70% on the assessment. For an exact breakdown of how that threshold is applied across the practical tasks, see BEE-AC Passing Score 2026: Exactly What You Need to Pass. Since this is a scheduled, proctored event rather than an on-demand online quiz, plan your registration around available testing windows - details on scheduling logistics are in BEE-AC Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Who Can Sit For It
CertTEC offers multiple eligibility routes rather than a single rigid prerequisite, which makes the BEE-AC accessible to candidates from different backgrounds:
- Relevant training or documented work experience
- A relevant military rating or assignment
- Graduation from a relevant college or technical-school program
Each route has its own documentation expectations. A full explanation of what qualifies and how to prove it is covered in BEE-AC Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Cost, Passing Score, and Renewal Mechanics
The exam fee is USD 100 per certification, and the certification remains valid for three years from the date earned. When it's time to renew, CertTEC offers three distinct paths, each with its own fee structure:
| Renewal Route | Requirement | Fee |
|---|---|---|
| Work verification (emailed certificate) | Verified relevant employment during at least 12 of the preceding 36 months | USD 10 |
| Work verification (mailed hard copy/ID card) | Same employment verification as above | USD 25 |
| Alternate Recertification Credits | At least 18 credits earned within the certification period | USD 15 |
| Equivalent knowledge exam | Pass a knowledge-based renewal exam | USD 50 |
These are administrative facts, but they matter for budgeting: the initial exam fee and the ongoing renewal cost together define the real multi-year cost of holding the certification. A complete cost breakdown, including how these numbers add up across a typical career, is in BEE-AC Certification Cost 2026: Complete Pricing Breakdown.
Who Hires People With This Credential
Because the BEE-AC validates hands-on AC troubleshooting skills - reading waveforms, diagnosing transformer faults, and working safely with live circuits - it's relevant to employers who need technicians capable of maintaining and repairing electrical and electronic systems in the field, not just discussing them theoretically. The emphasis on practical instrument use (multimeter, function generator, oscilloscope) signals to hiring managers that a certificate-holder can be productive on day one with standard test bench equipment.
If you're weighing whether this credential is worth pursuing for your career goals, our analysis in Is the BEE-AC Certification Worth It? Complete ROI Analysis 2026 looks at the tradeoffs, and BEE-AC Salary Guide 2026: Complete Earnings Analysis examines earning potential for holders. For a sense of the roles that typically value this credential, see BEE-AC Jobs.
Building a Domain-Aware Prep Plan
Generic study advice only goes so far with a performance-based exam like the BEE-AC - you need actual bench time with a multimeter, function generator, and oscilloscope, not just flashcards. That said, sequencing your review around the domains that carry the heaviest practical weight (Transformer Theory, RC/RL/RCL Principles, and Test Equipment and Measurements) makes review time more efficient.
Foundations
- Review Domain 1 (Principles of AC), Domain 12 (Mathematics and Formulas), and Domain 2 (Electronic Components and Terms) - these underpin everything else
Reactive Circuit Behavior
- Work through Domain 3 (Inductance), Domain 5 (Capacitance), and Domain 8 (RC, RL, and RCL Principles) with hands-on reactance calculations
Machines and Transformers
- Study Domain 4 (Transformer Theory), Domain 6 (AC Generator Theory), and Domain 7 (AC Motor Theory), focusing on winding-fault diagnosis
Instrument and Safety Drills
- Practice Domain 10 (Test Equipment and Measurements), Domain 9 (Cabling), and Domain 11 (Safety Precautions) on real hardware if possible
For a more detailed week-by-week study framework built specifically around this exam's structure, see our BEE-AC Study Guide 2026: How to Pass on Your First Attempt. Once you've reviewed the material, running timed practice questions on our practice test platform is one of the fastest ways to find weak spots before the proctored assessment, and revisiting a condensed reference like the BEE-AC Cheat Sheet 2026: One-Page Review of Must-Know Facts in your final days of prep helps lock in formulas and definitions.
Key Takeaway
Because the passing score is 70% and the format is hands-on, practice tests should be paired with actual instrument time - reading about an oscilloscope is not a substitute for using one.
Frequently Asked Questions
It's a proctored, in-person performance assessment. You demonstrate skills using real equipment - a multimeter, function generator, oscilloscope, and a Nida 130E or later trainer - rather than only answering written questions.
The exam fee is USD 100 per certification. Renewal fees are separate and range from USD 10 to USD 50 depending on the renewal route chosen.
You need a passing score of 70% on the performance assessment.
The BEE-AC certification is valid for three years. Renewal options include verified relevant work experience, Alternate Recertification Credits, or an equivalent knowledge exam.
No single path is required. Eligibility can be met through relevant training or work experience, a relevant military rating or assignment, or graduation from a relevant college or technical-school program.