What Is PE-I&S Certification?

What PE-I&S Certification Actually Is

In this context, PE-I&S stands for the Principles and Practice of Engineering exam in Industrial and Systems. NCEES labels it "PE Industrial and Systems." It is the exam that industrial and systems engineers take as the final examination step toward a Professional Engineer (PE) license in their discipline.

The word "certification" is common shorthand, but precision matters here. Passing this exam is not the same as earning a vendor credential that you renew every few years. It is one required component of licensure, and the license itself is issued by a state or territorial engineering board. If you want a broader orientation to the terminology, our explainers on what PE-I&S stands for and what PE-I&S is cover the basics, and this article focuses on how the exam and licensure process work in practice.

Who Runs the Exam and Who Licenses You

Two different organizations matter, and candidates often conflate them.

• NCEES (National Council of Examiners for Engineering and Surveying) writes, administers, and scores the exam. Its public exam page for Industrial and Systems is the authoritative source for logistics and the dated pass-rate table.
• Your licensing board decides whether you are eligible to sit for the exam, approves your application, and ultimately grants and renews the license.

Testing takes place in person at approved Pearson VUE test centers. The exam is offered once a year as a single-day, computer-based sitting. The scheduled date is October 28, 2026, and all examinees in that administration receive the same question set. For scheduling details, see our guide to PE-I&S exam dates and deadlines.

The Five Official Exam Domains

The NCEES exam specification organizes content into five numbered domains. Notably, NCEES does not publish fixed percentage weights for this exam. Instead it gives question-count ranges, and every domain carries the same range: 14-21 questions. No single domain is officially larger than another, which means a strategy built around skipping one area is risky.

The illustrative subtopics NCEES lists beneath each domain are examples, not an exhaustive syllabus. These five headings are official exam objectives, not a preparation curriculum, so do not confuse them with the structure of a training course. For a deeper walkthrough, read our complete guide to the five PE-I&S content areas.

How the Exam Is Built and Delivered

Question count and item types

The exam contains 85 questions, and that total includes unidentified, unscored pretest items. You will not know which items are pretest, so answer every question as though it counts. The format mixes traditional multiple-choice with alternative item types:

• Multiple-correct (select all that apply)
• Point-and-click
• Drag-and-drop
• Numerical fill-in

Scored items receive correct or incorrect credit only. There is no partial credit, and there is no deduction for wrong answers, so never leave an item blank.

Time and structure

The exam is divided into two sections that share a single testing clock. Once you submit a section, you cannot reopen it, so make deliberate decisions about flagging and reviewing before you submit.

What you can bring

The exam is closed book. You use a supplied, searchable electronic reference handbook, and personal reference materials are prohibited. You may use one NCEES-approved calculator. Familiarity with the handbook's search behavior is a genuine skill, so practice with it rather than discovering its quirks on test day. If you want a condensed refresher on the facts that tend to matter most, our PE-I&S cheat sheet is a useful companion.

Scoring, Pass Rates, and What They Mean

NCEES reports results as pass or fail. A pass requires a scaled score that meets the NCEES minimum-competence standard. NCEES does not publish a numerical passing score, so you should be wary of any source quoting a specific cutoff. For a fuller treatment, see our breakdown of the PE-I&S passing score.

The most recent NCEES table (updated January 2026) shows the prior October administration's results:

Eligibility and the Licensure Pathway

Here is a point that trips up many candidates: eligibility to sit for the exam, and any required board approval, is controlled by the licensing board you select. There is no single universal rule imposed by NCEES.

That said, a common licensure 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.

Treat that sequence as typical, not guaranteed. Some boards permit variations, and application requirements differ. Always confirm specifics with your own board before assuming you qualify. Our PE-I&S requirements guide walks through how to check your standing.

NCEES Records and references

If you build an NCEES Record for engineering, the application uses five references from U.S.-licensed engineers. This is a feature of that records service and not a universal prerequisite for sitting the exam. Your board's application rules govern what you actually need to submit.

Fees and Registration Mechanics

The NCEES exam fee is $400 per attempt. Separately, your licensing board may charge its own application fees, and these vary by jurisdiction. Budget for both. Retakes mean paying the exam fee again, which is one practical reason to prepare thoroughly the first time. For a complete picture of costs including study materials, review our PE-I&S certification cost breakdown.

Registration generally flows through your board's approval process and then through NCEES scheduling at a Pearson VUE center. Because the exam is offered on a single day each year, plan well ahead and verify deadlines rather than assuming a flexible testing window.

Who Hires Licensed Industrial and Systems Engineers

Industrial and systems engineers work wherever processes, flows, and quality need to be designed and improved. Typical employer categories include:

• Manufacturing and production firms optimizing throughput and layouts
• Logistics, warehousing, and distribution operations
• Healthcare systems improving patient flow and resource use
• Consulting firms advising on operations and process improvement
• Government agencies and defense-related organizations managing complex systems

The five exam domains map neatly onto this work: systems thinking, facility planning, operations control, work measurement, and quality improvement. As context for earnings, the U.S. Bureau of Labor Statistics reports a $102,440 median annual wage for industrial engineers (May 2025). That figure covers the occupation as a whole. It is not a PE-specific salary and does not measure a licensure premium. Whether a license pays off depends on your sector and role, which we examine in the salary guide and the ROI analysis. You can also browse PE-I&S jobs for role-level context.

Sequencing Your Preparation Around the Domains

Rather than a generic schedule, organize your study by the exam's structure. Because the five domains are equally weighted in question count, an even rotation makes sense, with extra time given to your weakest area. A sample sequencing approach:

The official NCEES e-book practice exam costs $59.95 and includes 85 questions with solutions. It is based on the October 2020 specifications and has the same content as the 2020 print edition. NCEES has also posted errata for the print practice exam (ISBN 978-1-947801-05-9), so check those corrections if you use that edition. For a fuller plan, see our PE-I&S study guide, and when you are ready to test yourself, use the PE-I&S practice tests to simulate the format.

Frequently Asked Questions