What Is A PE-I&S?

What the PE-I&S Actually Is

PE-I&S stands for Principles and Practice of Engineering - Industrial and Systems. It is the professional licensure examination that industrial and systems engineers take to become licensed Professional Engineers (PEs) in the United States. NCEES labels it officially as the PE Industrial and Systems exam.

The key word is licensure. Passing this exam does not earn you a vendor badge or a trade-association credential. It satisfies the examination requirement for a state or territorial engineering license, and that license is what allows you to sign and seal engineering work and hold yourself out as a Professional Engineer. If you have seen the same acronym attached to other credentials, set those aside: this article and this site concern only the NCEES engineering licensure exam.

For additional definitions and phrasing variants, see our companion explainers on what PE-I&S stands for and the meaning of PE-I&S.

Who Runs It and How It Is Delivered

The exam is developed and administered by the National Council of Examiners for Engineering and Surveying (NCEES). Testing is computer-based and delivered through Pearson VUE at approved Pearson test centers. Unlike some engineering disciplines that offer testing windows throughout the year, the Industrial and Systems exam is offered as an annual, single-day computer-based exam. The upcoming administration is scheduled for October 28, 2026, and every examinee in that administration receives the same question set. For scheduling specifics, see our guide to PE-I&S exam dates and deadlines.

Conditions on exam day are strict and worth knowing early:

• The exam is closed book. You get a supplied, searchable electronic reference handbook; personal reference materials are prohibited.
• You may use one NCEES-approved calculator.
• Testing is in person; remote proctoring is not part of the format.
• Problems use both SI and USCS units, so unit fluency matters.

The Five Exam Objectives

The NCEES specification organizes the exam into five numbered objectives, which this article calls domains. Each carries the same official allocation of 14-21 questions. NCEES does not publish fixed percentage weights for these domains, so any source quoting precise percentages is estimating, not citing the blueprint. The equal ranges are the most important structural fact: a weak domain cannot be offset by overpreparing in just one other area.

The subtopics listed beneath each objective in the NCEES specification are illustrative rather than exhaustive, so treat them as a starting map, not a guarantee of what will appear. For a deeper walkthrough, read our complete guide to all five PE-I&S content areas.

Question Formats and Scoring Rules

The exam contains 85 questions, and that count includes unidentified unscored pretest items. You cannot tell which items are pretest, so you must treat every question as if it counts. Formats include standard multiple choice plus alternative item types:

• Multiple-correct items, where more than one option must be selected
• Point-and-click items
• Drag-and-drop items
• Numerical fill-in items, where you enter a computed value

Scored items receive correct or incorrect credit only; there is no partial credit, and there is no deduction for wrong answers. That second point has a practical consequence: never leave an item blank. Even an educated guess has only upside.

Time and Structure

The two sections draw on the same overall clock, so how you divide your time between them is your decision. Because a submitted section cannot be reopened, finish reviewing flagged items before you submit. Pacing across an 8.5-hour testing period is a skill in its own right; stamina and a deliberate use of the scheduled break matter as much as knowing formulas.

How Passing Is Determined

Your result is reported as pass or fail. You pass by earning a scaled score that meets the NCEES minimum-competence standard. NCEES does not publish a numerical passing score, so you will not find a magic percentage to target. Our article on the PE-I&S passing score explains what is and is not known about scoring.

The Licensure Pathway Behind the Exam

Eligibility to sit for the exam is controlled by the licensing board you apply through, not by NCEES alone. Requirements vary by jurisdiction, so always confirm with your board first. That said, a common pathway looks like this:

1. Earn an engineering bachelor's degree from an EAC/ABET-accredited program.
2. Pass the Fundamentals of Engineering (FE) exam.
3. Accumulate four years of acceptable engineering experience.
4. Pass the PE exam, in this case the Industrial and Systems exam.

This is a common route, not a universal prerequisite for sitting the exam. Some boards allow variations, and board application requirements always control. If you build an NCEES Record for engineering, note that it uses five U.S.-licensed engineer references, but that too is not a universal exam-sitting requirement. Details are in our PE-I&S requirements guide.

Who Uses PE-I&S Licensure

Industrial and systems engineers work across manufacturing, logistics, healthcare operations, consulting, government, and process-driven service industries. The Bureau of Labor Statistics reports a median annual wage of $102,440 for industrial engineers (May 2025). Treat that figure carefully: it describes the occupation as a whole, not PE holders specifically, and it is not a measured licensure premium. Many industrial engineers practice without a PE license, so the license tends to matter most where an employer, a client, or a regulation expects a sealed deliverable, or where career advancement into senior technical or consulting roles is tied to licensure.

To weigh the career value yourself, see our salary analysis and the ROI discussion on whether the credential is worth it. For a look at roles that value the license, browse PE-I&S jobs.

Fees, Scheduling, and Test-Day Logistics

The NCEES exam fee is US$400 per attempt. Separate board application fees can apply on top of that, and these differ by jurisdiction, which is why the real out-of-pocket cost is rarely just the exam fee. Add preparation materials and any travel to a Pearson VUE center. For a fuller breakdown, see the PE-I&S certification cost guide.

A few logistics to plan around:

• Because the exam is offered once a year, a missed or failed attempt means waiting for the next annual administration, which makes first-attempt readiness unusually valuable.
• Your total seat time is 9 hours 30 minutes, so plan food, hydration, and the 50-minute break in advance.
• Learn the electronic reference handbook interface before exam day, since the supplied handbook is the only reference you may use.

What the Published Pass-Rate Data Says

NCEES publishes dated pass-rate tables. In the table updated January 2026, the figures for the prior October administration (not the upcoming October 2026 sitting) were:

Two cautions apply. First, these samples are small, so year-to-year swings can be sizeable. Second, the gap between first-time and repeat results is striking, and it supports a simple strategy: prepare thoroughly for a single strong first attempt. For interpretation, see what the pass-rate data shows and our difficulty guide.

Sequencing Your Preparation Around the Blueprint

Because all five domains share the same 14-21 question range, a balanced plan beats a lopsided one. A reasonable approach is to start with the domain whose math underpins others, then move outward. Statistics from Quality Engineering support Operations and Work Design, so many candidates tackle it early.

NCEES sells an official e-book practice exam for $59.95, with 85 questions and solutions, based on the October 2020 specifications. It is a useful calibration tool for format and difficulty, though it reflects the 2020-era blueprint. For a complete plan, see our PE-I&S study guide, and for last-pass review use the one-page cheat sheet. When you are ready to test yourself under realistic conditions, try the PE-I&S practice tests and compare your results across all five domains.

Frequently Asked Questions