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PSE Cheat Sheet 2026: One-Page Review of Must-Know Facts

TL;DR
  • The written exam is 50 multiple-choice questions in four hours, with a 70% average passing criterion.
  • It is open book and open notes, and a scientific calculator is allowed.
  • Engineer fees: $50 application, $260 certification, $150 annual renewal; initial outlay is $310.
  • Eligibility is assessed against nine years of qualifying experience, with education credits capped at five years.

The One-Glance Exam Snapshot

This page condenses what a Product Safety Engineer candidate needs on a single screen. It covers the Exemplar Global/iNARTE Product Safety (PS) Engineer credential: the full Engineer level, not the Associate or Technician tiers. Everything below is drawn from the issuer's catalog and certification page, and where a detail is unpublished, we say so rather than fill the gap with a guess. For a slower walk through preparation, pair this sheet with the PSE Study Guide.

ItemWhat is published
Administering bodyExemplar Global (iNARTE Product Safety Engineer program)
Format50 multiple-choice questions
Time allowedFour hours
Passing criterion70% average
Reference policyOpen book / open notes
CalculatorScientific calculator allowed
ResultsWithin 10 working days
Retake wait90 days
Topic structure25 unweighted Examination Topics
Why the format matters: Fifty questions across four hours is roughly four and a half minutes per item on average. That is generous, which tells you the questions lean toward applied judgment and standards lookup rather than pure recall. If you want a sense of how that translates to difficulty, see How Hard Is the PSE Exam?

Eligibility and the Nine-Year Rule

Eligibility is where many candidates misread the requirements, so read this block twice. The catalog asks for STEM college or university transcript or diploma evidence, a current resume, an ethics agreement, and qualifying engineering experience assessed against nine years. Education and teaching can substitute for part of that nine years through published credits.

Published experience credits

  • Four years credited for an accredited four-year engineering qualification.
  • One year per satisfactorily completed accredited engineering year for partial programs.
  • Two years for a BSET (Bachelor of Science in Engineering Technology).
  • Up to one year for engineering postgraduate study.
  • Up to two years for qualifying teaching.
  • Combined education/teaching credit is capped at five years.
  • Other curricula are individually evaluated by the issuer.
Read the badge carefully: The issuer's Credly badge summarizes a relevant four-year STEM degree or equivalent plus nine years of experience. That does not mean nine additional years after the degree. The degree credit counts toward the nine, per the catalog's rules. A full walkthrough of qualifying paths lives in PSE Requirements.

The detailed requirements form on the issuer's site is gated, so confirm your specific situation with Exemplar Global before paying anything if your background is unusual (for example, a non-engineering STEM degree or experience gained mostly in compliance rather than design).

Fees, Results, Retakes and Renewal

Cost / ruleAmount or requirement
Application fee$50
Certification fee$260
Initial total (application + certification)$310 (calculated sum, not a separately quoted exam-only fee)
Annual renewal$150
Continuing education30 CPD hours per 12-month certification period, with evidence
Retake wait90 days

Two cautions. First, the published figures are shown in dollars without an explicit currency label, and no member versus non-member fee split is published, so do not assume a discount structure exists. Second, regional training or testing partners may price differently or run their own schedules; treat any regional notice as a separate source, not as global rules. For a deeper cost breakdown including the ongoing renewal burden, see PSE Certification Cost.

Key Takeaway

Budget for the recurring costs, not just the entry price: $150 each year plus 30 documented CPD hours. Start logging CPD evidence the day you are certified, using the issuer's CPD log format.

All 25 Examination Topics, Grouped

The issuer publishes 25 headings as Examination Topics. They are unweighted: there are no official percentages and no published "most heavily tested" topic. They are also not a preparation curriculum. Treat them as a coverage checklist. Our PSE Exam Domains guide covers each one in depth; the cheat-sheet version below groups them into three working clusters so you can review efficiently.

  1. Connection to supply
  2. Isolation of supply
  3. Mechanical hazards
  4. Earthing
  5. Types of Insulation
  6. Protection against electrical shock
  7. Resistance to fire
  8. Fire hazards
  9. Limits on fuel
  10. Limits on heat
  11. Insulation damage
  12. Creepage
  13. Inter system and intra system design
  14. Equipment design
  15. Hazard analysis
  16. Risk assessment
  17. Design review
  18. Legislation US, EEC and International
  19. Military and Civil Electrical Safety Standards
  20. Safety tests
  21. Assessment authorities
  22. Competent Bodies
  23. Safety certification
  24. Declarations of Conformity
  25. Operating and maintenance instructions and handbooks

Note that the global catalog uses the wording "Creepage" and "Military and Civil Electrical Safety Standards." Regional notices may phrase these differently (for example, pairing creepage with clearance), but the global topic list above is the one to study against.

Electrical Shock, Insulation and Supply: The Core Cluster

Roughly a dozen of the 25 topics orbit the same engineering question: how do you keep a user from becoming part of a circuit? Learn them as one connected story rather than as separate flashcards.

Connection to supply and Isolation of supply

How equipment attaches to and detaches from mains power safely.

  • Terminal and cord-connection practices, strain relief and cord anchorage concepts
  • Disconnect devices: what qualifies as an isolating means and where it must be located
  • Why isolation must be unambiguous to a service person, not just to the designer

Earthing

Protective earth as a fault-current path that lets protective devices operate.

  • Continuity and impedance expectations for protective earth connections
  • Reliability of the connection under vibration, corrosion and servicing
  • When a product relies on earthing versus when it relies on double or reinforced insulation

Types of Insulation, Insulation damage and Creepage

The vocabulary and physics that most scenario questions lean on.

  • Functional, basic, supplementary, double and reinforced insulation, and when each is required
  • How insulation degrades: thermal ageing, mechanical stress, contamination, moisture
  • Creepage as the shortest path along a surface, and why pollution degree and material group change the required distance

Protection against electrical shock

The system-level payoff of the topics above.

  • Accessibility of live parts and the role of test probes in judging it
  • Touch current and its relationship to earthing and insulation choices
  • Stored energy hazards after the supply is removed
Exam-style thinking: Expect questions that give you a product situation and ask which protective measure is appropriate, or which part of a design fails a stated requirement. Know the reason behind each rule, because the reason is what lets you answer a variant you have never seen.

Fire, Fuel and Heat: The Thermal Cluster

Four topics (Resistance to fire, Fire hazards, Limits on fuel and Limits on heat) form a second tight group. The unifying idea is the fire triangle applied to product design: control ignition sources, limit available fuel, and contain a fire if it starts.

Resistance to fire and Fire hazards

How materials and enclosures behave when something goes wrong inside the product.

  • Flammability classifications for plastics and insulating materials, and where each is appropriate
  • Enclosure function: containing a fire versus merely housing components
  • Fault conditions that create ignition sources, such as overloaded wiring, failed components and poor connections

Limits on fuel and Limits on heat

Design controls that keep a single fault from becoming a fire.

  • Limiting the quantity of combustible material near potential ignition sources
  • Temperature limits for accessible surfaces and for component and insulation ratings
  • Thermal protection devices and how they are verified in testing

Key Takeaway

For any thermal question, ask three things in order: what is the ignition source, what fuel is nearby, and what stops the fire from spreading. That sequence resolves most scenario items in this cluster.

Hazard Analysis Through Handbooks: The Process Cluster

The remaining topics shift from hardware to method and paperwork. Candidates from a pure design background often underinvest here; candidates from a compliance background often do the opposite. Balance matters, because the exam covers both.

Hazard analysis, Risk assessment and Design review

The structured thinking that sits behind every safe design.

  • Identifying hazards across the product life cycle: use, misuse, servicing, transport and disposal
  • Distinguishing a hazard from the risk it creates, and the idea of combining severity with likelihood
  • Design review as a gate: who participates, what evidence is examined, and how findings are tracked to closure

Inter system and intra system design; Equipment design

Safety at the architecture level.

  • Interfaces between subsystems and between a product and other equipment it connects to
  • Mechanical hazards from moving parts, sharp edges, stability and ejected parts
  • Designing so that a single fault does not defeat a safeguard

Legislation, Military and Civil Standards, and Safety tests

The regulatory and verification landscape.

  • How US, EEC (European) and international frameworks differ in structure and in how conformity is demonstrated
  • The role of military and civil electrical safety standards when products serve defense or public-sector markets
  • Routine tests versus type tests, and what a test report must show to be useful

Assessment authorities, Competent Bodies and Safety certification

Who judges conformity and how.

  • The difference between self-declaration and third-party assessment
  • What a competent body is and what it can and cannot attest to
  • How a certification mark relates to the underlying standard and to ongoing surveillance

Declarations of Conformity; Operating and maintenance instructions and handbooks

Documentation as a safety measure.

  • What a Declaration of Conformity states, who signs it and what technical file supports it
  • Safety-critical content in manuals: warnings, installation conditions, maintenance intervals and instructions that substitute for design controls
  • Why a missing or ambiguous instruction can itself be classified as a hazard

Employers who hire for this credential span product manufacturers, test and certification laboratories, consulting firms and regulatory affairs teams. If you are weighing job targets, PSE Jobs and the PSE Salary Guide cover that ground, and Is the PSE Certification Worth It? frames the return on investment.

Making an Open-Book, Four-Hour Exam Work for You

Open book does not mean easy. It means the exam rewards organization and judgment over memorization. Several points follow directly from the published format:

  • Index your references. With roughly four and a half minutes per question on average, you cannot afford to page through a standard looking for one clause. Tab, highlight and build a one-page topic map keyed to the 25 headings.
  • Prepare calculation sheets. A scientific calculator is allowed, so write down the formulas you expect to use (power, temperature rise, spacing relationships) in a form you can find in seconds.
  • Triage ruthlessly. Answer what you know first, flag lookups, and return. A single stubborn question should never consume the time of five easy ones.
  • Know your own notes. Notes you have never used under time pressure are almost as slow as no notes at all.
Scoring note: The 70% figure is described as an average passing criterion. The retrieved sources do not explain scoring beyond that, so avoid building strategy around assumed partial credit or weighting. Our PSE Passing Score article explains what is and is not known, and PSE Pass Rate explains why no trustworthy global pass-rate figure should be assumed.

To pressure-test your references and pacing, run timed sets on the PSE practice test site with your actual notes open, then note which topics send you hunting.

A Domain-Sequenced Review Plan

Generic study advice is everywhere; the useful question is which topics to sequence, and why. Because the issuer publishes no weighting, a coverage-first plan with one pass per cluster, followed by mixed review, is the defensible approach. Here is one way to order it over six weeks.

Week 1

Supply and shock foundations

  • Connection to supply, Isolation of supply, Earthing
  • Build your reference index while the vocabulary is fresh
Week 2

Insulation and spacing

  • Types of Insulation, Insulation damage, Creepage, Protection against electrical shock
  • Work spacing and insulation-class scenarios until the reasoning is automatic
Week 3

Thermal cluster and mechanical hazards

  • Resistance to fire, Fire hazards, Limits on fuel, Limits on heat, Mechanical hazards
Week 4

Design and analysis methods

  • Inter system and intra system design, Equipment design, Hazard analysis, Risk assessment, Design review
Week 5

Regulation, testing and conformity

  • Legislation, Military and Civil standards, Safety tests, Assessment authorities, Competent Bodies, Safety certification, Declarations of Conformity, handbooks
Week 6

Mixed timed practice

  • Full-length, open-notes timed sets; revisit whichever cluster costs you the most lookup time

Stretch or compress this to fit your experience. A candidate fresh from a compliance lab may spend more time on Weeks 1 to 3, while a design engineer may need extra time in Week 5. Mind the 90-day retake wait when choosing your target date; the PSE Exam Dates article covers scheduling mechanics.

What Is Not Published (Do Not Assume)

A good cheat sheet tells you where the edges are. The retrieved issuer sources do not publish:

  • Official weightings or percentages for any of the 25 topics, or a "highest-weighted" topic.
  • A dated exam-form identifier.
  • Verification of a separate worldwide testing vendor, a remote-proctoring platform or an adaptive format.
  • A mandatory preparation-hour total or a universal reference-book list.
  • A member versus non-member fee split.

Regional notices (such as a 2026 examination notice from a Japanese authorized training provider) exist, but their eligibility rules, fees and pass statistics are regional and combine Engineer and Technician levels. Do not import them as global Product Safety Engineer facts, and do not assume the Japanese and global/English exam forms are equivalent. When in doubt, confirm directly with Exemplar Global.

Key Takeaway

If a claim about this exam cites a precise topic percentage, a pass rate or a specific exam window without naming the issuer document it came from, treat it as unverified until you can trace it back to Exemplar Global.

If you are new to the credential itself, What Is PSE Certification? and PSE Training give the background, and our main practice test hub is the fastest way to check how your reasoning holds up against exam-style questions.

FAQ

How many questions are on the Product Safety Engineer exam?

The published written exam is 50 multiple-choice questions with a four-hour time allowance. The passing criterion is a 70% average.

Can I bring references and a calculator?

Yes. The exam is open book and open notes, and a scientific calculator is allowed. Because the exam is time-limited, organized and indexed materials matter far more than the sheer volume of what you bring.

What does it cost to get certified at the Engineer level?

Published fees are $50 for the application and $260 for certification, which sums to $310 initially, plus $150 annually for renewal. Currency is not explicitly labeled and no member discount is published, so verify at purchase time.

Which exam topic is weighted most heavily?

The issuer does not publish topic weights. The 25 Examination Topics are listed without percentages, so prepare across all of them rather than betting on a single heavy area.

How long do I wait if I need to retake the exam, and how do results arrive?

The published retake wait is 90 days, and results are returned within 10 working days. Plan your first attempt so a retake, if needed, still fits your career or employer timeline.

Keep this sheet beside your notes as a final checklist: format, fees, eligibility credits, the 25 topics and the unknowns. Then validate your readiness with timed practice and the deeper guides linked above.

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