The PE Electrical and Computer: Electronics, Controls, and Communications exam — usually shortened to PE ECC — is one of the focused PE Electrical and Computer exams. It blends classic electronics, analog and digital control systems, instrumentation, signal processing, electromagnetics and fiber optics, and communications into a single 85-question exam. Because it is brand new for April 2026, there is very little study material written specifically for it yet, so the most reliable plan is to study straight from the official topic weights.
PE ECC Exam at a Glance
| Exam | PE Electrical and Computer: Electronics, Controls, and Communications |
| Effective | April 2026 examination (new exam) |
| Questions | 85 |
| Format | Computer-based at Pearson VUE; closed book with an NCEES-supplied electronic reference |
| Appointment | 9.5 hours (about 8.5 hours of testing plus tutorial and an optional break) |
| Topics | 12 knowledge areas |
| Calculator | NCEES-approved models only (e.g., TI-36X Pro, Casio fx-115/991 series) |
What Is the PE ECC Exam?
PE ECC certifies depth on the electronics, controls, and communications side of electrical and computer engineering. It is not the same exam as PE Power (which leans on the NEC and power-system codes) or PE Computer Engineering (which leans on architecture, software, and networks). If your work involves analog and digital circuit design, embedded and control systems, instrumentation, RF and communications, or signal processing, ECC is usually the right fit. Passing a PE exam, combined with your state's experience requirement, is the final step to a Professional Engineer license.
What Changed in April 2026?
NCEES offers the Electrical and Computer discipline as separate, focused exams rather than one broad test. Electronics, Controls, and Communications is the focused exam for candidates in that lane, effective beginning with the April 2026 administration. Two practical consequences for your prep:
- Study from the new blueprint, not old "PE Electrical and Computer" material. Older review books and question sets written for the broad exam will not match the current 12-topic ECC weighting.
- Pass-rate history is thin. As a first-cycle exam, there is little published pass-rate data. Treat your own topic coverage and timed-practice scores as the signal, not a national pass rate.
Because so little ECC-specific material exists yet, candidates who build their plan directly around the official topic weights below have a real advantage.
Official PE ECC Topic Weights (April 2026)
These are the 12 official topics and their question-count ranges from the NCEES specification. The percentage column is each topic's share of the 85-question exam (rounded), and "Priority" groups the topics by how much exam weight they carry.
| Topic | Questions | ~% of exam | Priority |
|---|---|---|---|
| Circuit Analysis and Design | 10–15 | 12–18% | High |
| Analog and Digital Control Systems | 8–12 | 9–14% | High |
| Digital Systems | 7–11 | 8–13% | High |
| Electronics Circuits | 7–11 | 8–13% | High |
| Electronic Components | 6–9 | 7–11% | Medium |
| Measurement and Instrumentation | 5–8 | 6–9% | Medium |
| Safety and Reliability | 5–8 | 6–9% | Medium |
| Signal Processing | 5–8 | 6–9% | Medium |
| Electromagnetics and Fiber Optics | 5–8 | 6–9% | Medium |
| Communication Techniques | 4–6 | 5–7% | Foundational |
| Noise and Interference | 4–6 | 5–7% | Foundational |
| Communications Systems | 4–6 | 5–7% | Foundational |
Ranges are set by NCEES; the exact number of questions per topic varies by form. Use the ranges to budget study time, not to predict an exact count.
Highest-Return Topics
The four High-priority topics — Circuit Analysis and Design, Analog and Digital Control Systems, Digital Systems, and Electronics Circuits — carry 32–49 of the 85 questions (roughly 40–55%). If your study time is limited, these are the highest-return areas:
- Circuit Analysis and Design (10–15): DC/AC analysis, phasors and impedance, transient (RC/RL) response, Thevenin/Norton equivalents, resonance, and op-amp configurations. This is the single largest topic — make it automatic.
- Analog and Digital Control Systems (8–12): closed-loop transfer functions, stability (Routh-Hurwitz, gain/phase margin, root locus), time-response metrics (settling time, percent overshoot), and sampled/z-domain control.
- Digital Systems (7–11): Boolean logic and minimization, combinational vs. sequential design, flip-flops and state machines, setup/hold timing and slack, and basic embedded/PLC logic.
- Electronics Circuits (7–11): small-signal models, gain and bandwidth, active filters, comparators, rectifiers and power supplies, and thermal/heat-sink limits.
The Medium tier (Electronic Components, Measurement & Instrumentation, Safety & Reliability, Signal Processing, Electromagnetics & Fiber Optics) adds another large block, and the three Foundational communications topics round out the exam. Don't skip them — but earn your high-tier points first.
A 12-Week PE ECC Study Plan
A realistic plan budgets 150–300 hours over 8–16 weeks, front-loaded onto the high-weight topics. A 12-week version:
- Weeks 1–4 — High-tier core: Circuit Analysis & Design, Electronics Circuits, Digital Systems, and Control Systems. Take a short diagnostic first so you know which of the four is weakest.
- Weeks 5–8 — Medium tier: Electronic Components, Measurement & Instrumentation, Signal Processing, Electromagnetics & Fiber Optics, and Safety & Reliability.
- Weeks 9–10 — Communications: Communication Techniques, Noise & Interference, and Communications Systems (link budgets, noise figure, modulation, Shannon capacity).
- Weeks 11–12 — Mixed timed practice: full-length, time-boxed sets with the electronic reference open. Rehearse classifying each prompt into its topic lane before you search.
Practice with the reference open from day one. On a closed-book electronic-reference exam, knowing where a formula lives is as valuable as knowing the formula. Our companion PE ECC reference-navigation guide drills exactly that.
How to Pass the PE ECC Exam on the First Try
- Prioritize by weight. Score the high-tier topics first; they are 40–55% of the exam.
- Separate dB from linear. A large share of ECC errors come from mixing decibel and linear arithmetic in noise, gain, and link-budget problems. Keep them in separate steps.
- Draw the model before you compute. Sketch the circuit, the measurement chain (sensor → conditioning → ADC), the timing path, the control loop, or the link. Most ECC traps are setup errors, not arithmetic.
- Master one approved calculator. Practice your equation solver, complex-number mode, and matrix entry on a TI-36X Pro or Casio fx-115/991 until it is automatic. See our calculator guide.
- Review every miss by lane. When you miss a question, label why — wrong topic lane, dB/linear slip, wrong model, or a reference-lookup that took too long — and fix that habit, not just the one answer.
PE ECC Practice Questions
The fastest way to find your weak lanes is to work real ECC problems with full solutions. Our free set gives 20 exam-style PE ECC questions — multiple-choice plus alternate item types — with step-by-step solutions and calculator steps, scored by topic so you can see where to focus.
✅ 20 free PE ECC practice questions — exam-style, with worked solutions and a per-topic score
📐 PE ECC reference-navigation guide — topic lanes and search cues for the electronic reference
📱 Open the study app — the full PE ECC question bank with the reference panel and calculator
Frequently Asked Questions
What is the PE ECC exam?
PE ECC is the PE Electrical and Computer: Electronics, Controls, and Communications exam, effective beginning with the April 2026 examination. It is a closed-book, computer-based exam with an NCEES-supplied electronic reference, containing 85 questions across 12 official topic areas. It is one of the focused PE Electrical and Computer exams and is separate from PE Power and PE Computer Engineering.
What topics are on the PE ECC exam, and how are they weighted?
The April 2026 NCEES specification lists 12 topics. The highest-weight areas are Circuit Analysis and Design (10–15 questions), Analog and Digital Control Systems (8–12), Digital Systems (7–11), and Electronics Circuits (7–11). Together those four account for roughly 40–55% of the 85-question exam, so they are the highest-return places to start studying.
Is the PE ECC exam the same as PE Computer Engineering?
No. PE Electrical and Computer: Electronics, Controls, and Communications (ECC) emphasizes circuits, electronics, controls, instrumentation, signal processing, electromagnetics, and communications. PE Electrical and Computer: Computer Engineering is a separate exam emphasizing computer architecture, systems software, networks, and cybersecurity.
How long should I study for the PE ECC exam?
Most candidates plan roughly 150–300 hours over 8–16 weeks, weighted toward the high-count topics. Because PE ECC is a new (April 2026) exam with limited published pass-rate history, focus on the official topic weights, timed practice with the electronic reference open, and reviewing every missed question by topic lane.
PE ECC Free Practice • Reference Navigation Guide • Calculator Guide • NCEES Changes Timeline • Alternate Item Types
Disclaimer: This guide is an independent educational resource and is not affiliated with, endorsed by, or sponsored by NCEES. The "PE" exam and "NCEES" are trademarks of the National Council of Examiners for Engineering and Surveying. Exam specifications and reference materials can change; always refer to the official NCEES website and your MyNCEES account for current exam information.
Start Practicing for the PE ECC Exam
Put the topic weights to work: try 20 free PE ECC questions with worked solutions, then use the full app to drill your weakest topics with the reference panel and calculator open.