- What a PSE Actually Is
- What Product Safety Engineers Do Day to Day
- The Credential at a Glance
- Who Qualifies: Education and Experience Credits
- How the Written Exam Works
- The 25 Examination Topics
- Where Candidates Spend Their Time
- The Regulatory and Paperwork Side
- Sequencing Your Preparation
- Keeping the Credential Active
- Frequently Asked Questions
- A PSE here is a Product Safety Engineer, certified through Exemplar Global's iNARTE program.
- The written exam has 50 multiple-choice questions, four hours, open book, with a 70% passing criterion.
- Eligibility is assessed against nine years of qualifying experience, with education and teaching credit capped at five years.
- The issuer publishes 25 unweighted Examination Topics, from connection to supply through operating and maintenance handbooks.
What a PSE Actually Is
In this context, a PSE is a Product Safety Engineer: an engineer who designs, evaluates and documents products so that they do not injure users, start fires or fail dangerously. The credential is awarded through Exemplar Global under its iNARTE program, and the issuer's own terminology is "Product Safety (PS) Engineer." It sits alongside other iNARTE certification tracks, but this article covers only the full Engineer-level credential, not the Associate or Technician levels.
The acronym is shared by several unrelated credentials and job titles in other industries. Nothing here applies to them. If you arrived searching for a general definition, our shorter explainers on what PSE is and what PSE stands for cover the naming question; this piece goes deeper into what the Product Safety Engineer credential demands.
What Product Safety Engineers Do Day to Day
Product safety engineering is a discipline that lives between design engineering and regulatory compliance. A working PSE typically touches several recurring tasks:
- Design-stage safety review: reading schematics and mechanical layouts to catch shock, fire, heat and mechanical hazards before hardware is built.
- Hazard analysis and risk assessment: structuring what could go wrong, how likely it is, and what mitigations are justified.
- Standards interpretation: mapping a product to applicable electrical safety standards and legislation in the markets where it will be sold.
- Test planning and witnessing: specifying safety tests, working with test laboratories, and interpreting results.
- Certification and documentation: coordinating with assessment authorities and competent bodies, preparing declarations of conformity, and reviewing user instructions for safety content.
Employers who value this skill set include electronics and appliance manufacturers, medical and laboratory equipment makers, industrial controls companies, test and certification laboratories, and consultancies that support market access. For a closer look at the roles this credential feeds into, see our overview of PSE jobs.
The Credential at a Glance
| Item | Published detail |
|---|---|
| Certifying program | Exemplar Global / iNARTE |
| Credential level covered | Product Safety Engineer (not Associate or Technician) |
| Exam format | Written, 50 multiple-choice questions |
| Time allowed | Four hours |
| Passing criterion | 70% average |
| Reference materials | Open book / open notes; scientific calculator allowed |
| Results | Within 10 working days |
| Retake wait | 90 days |
| Fees | $50 application; $260 certification; $150 annual renewal |
| Renewal requirement | 30 CPD hours per 12-month certification period, with evidence |
Two cautions on the numbers. First, the $310 figure you may see quoted for getting started is simply the application fee plus the certification fee added together; it is not a separately published exam-only price. Second, the published pages do not explicitly label the dollar currency or split fees by member status. Our PSE certification cost breakdown walks through the budgeting details.
Who Qualifies: Education and Experience Credits
Eligibility is the part of this credential that surprises candidates most. The catalog requires evidence of a STEM college or university education (a transcript or diploma), a current resume, an ethics agreement, and qualifying engineering experience that is assessed against a nine-year benchmark. Education and teaching do not replace experience one-for-one in a simple way; they earn credits toward that benchmark under published rules:
- Four years of credit for an accredited four-year engineering qualification.
- One year of credit per satisfactorily completed year of an accredited engineering program.
- Two years of credit for a BSET (bachelor of science in engineering technology).
- Up to one year of credit for engineering postgraduate study.
- Up to two years of credit for qualifying teaching.
- Combined education and teaching credit is capped at five years.
Other curricula are evaluated individually. The practical reading: someone with an accredited four-year engineering degree starts with four years of credit and needs the remaining experience to reach the assessed benchmark. The issuer's Credly badge summary mentions a four-year STEM degree or equivalent plus nine years of experience, but that should be read together with the catalog's credit rules rather than as nine additional years on top of a degree.
How the Written Exam Works
The exam is a single written paper of 50 multiple-choice questions with a four-hour limit. That works out to a generous amount of time per question, which tells you something about the style: items are designed to be worked, not recalled in seconds. Expect scenario-style questions that ask you to apply a safety principle, evaluate a design choice, or identify what a standard or process requires.
Because the exam is open book and open notes, memorization of tables matters less than knowing where an answer lives and how to reason when the answer is not verbatim in your notes. A scientific calculator is permitted, so expect at least some quantitative items. The pass criterion is a 70% average, results arrive within 10 working days, and a failed attempt carries a 90-day wait before a retake.
The issuer states the criterion as a 70% average and does not publish a question-level scoring breakdown, so avoid reading more precision into it than exists. Our PSE passing score explainer covers what is and is not known. For a realistic sense of effort, see how hard the PSE exam is, and for outcome statistics the honest answer is on our PSE pass rate page: no official global figure is published.
Key Takeaway
Open-book does not mean easy. With 50 questions across 25 broad topics, you need an organized reference set and enough fluency to find and apply the right principle quickly. Practice under timed conditions with a tabbed or indexed notebook, and try our PSE practice tests to rehearse that workflow.
The 25 Examination Topics
The issuer publishes 25 Examination Topics. Importantly, these are unweighted headings: there is no official percentage per topic, no published "highest-weighted" area, and they are an outline of what may be examined rather than a preparation curriculum. For topic-by-topic coverage, see our complete guide to all 25 PSE content areas. Here is how they naturally cluster:
| Cluster | Topics included |
|---|---|
| Electrical construction and shock protection | Connection to supply; Isolation of supply; Earthing; Types of Insulation; Protection against electrical shock; Insulation damage; Creepage |
| Fire and thermal safety | Resistance to fire; Fire hazards; Limits on fuel; Limits on heat |
| Mechanical and design | Mechanical hazards; Inter system and intra system design; Equipment design |
| Analysis and review | Hazard analysis; Risk assessment; Design review |
| Law, standards and conformity | Legislation US, EEC and International; Military and Civil Electrical Safety Standards; Safety tests; Assessment authorities; Competent Bodies; Safety certification; Declarations of Conformity |
| User-facing documentation | Operating and maintenance instructions and handbooks |
One wording note: the global catalog uses "Creepage" and "Military and Civil Electrical Safety Standards." Regional notices from other bodies may phrase similar topics differently, such as pairing creepage with clearance, and those variants should not be assumed to match the global exam.
Where Candidates Spend Their Time
Shock Protection Chain: Supply, Isolation, Earthing, Insulation
Several topics describe one connected story: how a product takes in power, how it can be disconnected, how fault current is managed, and how insulation keeps users away from hazardous voltage.
- Know the difference between basic, supplementary, double and reinforced insulation, and why each exists.
- Understand protective earthing as a fault-path concept, not just a wire color.
- Be ready to reason about creepage and insulation damage: what degrades insulation over a product's life and how design margins respond.
- Practice linking a described fault to the protection that should have prevented injury.
Fire and Thermal Topics: Fuel, Heat, Flame Resistance
Resistance to fire, fire hazards, limits on fuel and limits on heat form a fire-prevention logic: remove ignition sources, limit what can burn, and contain what happens if something does ignite.
- Think in terms of ignition source, fuel and spread, and which design controls break each link.
- Understand why material choices and enclosure design matter to both temperature limits and flame spread.
- Expect questions where a design change affects more than one hazard at once.
Hazard Analysis, Risk Assessment and Design Review
These three topics are where engineering judgment is tested most directly. They reward process fluency over rote facts.
- Distinguish identifying a hazard from estimating risk and from deciding whether the risk is acceptable.
- Know the hierarchy of controls: eliminate by design, guard, then warn.
- Understand what a meaningful design review looks for and when it should occur in a development cycle.
The Regulatory and Paperwork Side
Many technically strong engineers underestimate the conformity topics. Legislation (US, EEC and international), assessment authorities, competent bodies, safety certification and declarations of conformity make up a large share of the 25-topic outline, and they are the area where a product's design meets market access.
Prepare to explain, in plain terms, who evaluates a product, what a declaration of conformity asserts and who signs it, how safety tests support a certification claim, and why military and civil electrical safety standards are treated as distinct families. Operating and maintenance instructions deserve respect too: a product can be well designed and still be unsafe if warnings, installation steps or maintenance guidance are wrong or missing.
Sequencing Your Preparation
Because the 25 topics are unweighted, avoid over-investing in one area on a guess. A sensible sequence follows how the topics build on each other. Our full PSE study guide goes deeper; here is a compact version tied to this exam's structure:
Shock-protection foundation
- Supply connection, isolation, earthing and the insulation types
- Creepage and insulation damage, since they build on insulation concepts
Fire, heat and mechanical hazards
- Fire hazards, fuel and heat limits, resistance to fire
- Mechanical hazards and equipment design
Analysis and conformity
- Hazard analysis, risk assessment and design review
- Legislation, standards, assessment authorities, certification and declarations of conformity
Timed practice and notes
- Build your open-book index and rehearse with timed sets
- Review weak clusters rather than rereading everything
That timeline is a suggestion, not an official requirement; the issuer does not publish a mandatory number of preparation hours. A one-page PSE cheat sheet is a handy way to consolidate the concepts you plan to bring in.
Keeping the Credential Active
Certification is not a one-time event. The published annual renewal fee is $150, and the CPD requirement is 30 hours per 12-month certification period, with evidence kept in line with the issuer's continuing professional development log. In practice that means tracking training, standards courses, conferences and relevant work-related learning as you go, rather than reconstructing a year of activity at renewal time.
Whether the credential pays for itself depends on your market, employer and career stage. We discuss that in our ROI analysis and in the salary guide, which stay qualitative where reliable published figures do not exist. For timing and scheduling questions, see PSE exam dates, and for a broader overview of the program, our PSE certification page.
Frequently Asked Questions
It stands for Product Safety Engineer. The credential is offered through Exemplar Global's iNARTE program, which uses the term "Product Safety (PS) Engineer." The same letters are used by unrelated credentials elsewhere, which are not covered here.
The written exam has 50 multiple-choice questions with a four-hour time limit. It is open book and open notes, and a scientific calculator is allowed. The passing criterion is a 70% average.
No official weighting is published. The issuer lists 25 Examination Topics without percentages, so you should not assume any one topic carries more weight. Prepare broadly across all clusters.
Experience is assessed against nine years, with credit available for accredited engineering education and qualifying teaching, capped at five years combined. For example, an accredited four-year engineering qualification earns four years of credit. Other educational backgrounds are evaluated individually.
After an unsuccessful attempt there is a 90-day wait before retaking. Once certified, renewal costs $150 annually and requires 30 hours of continuing professional development per 12-month period, with supporting evidence.
If you are ready to test your recall against realistic scenarios, start with our PSE practice questions and use the results to decide which of the 25 topics deserves your next study session.