Understanding Who Needs to Take the FE Exam in the US

Who needs to take the FE exam? It’s one of the first questions engineers ask when they start researching the path to licensure — and the answer is more nuanced than most resources let on.

The short version: if you want to become a licensed Professional Engineer in the United States, you need to take the FE exam. It’s the first step in the licensure process, and there’s no way around it. But who specifically needs to take it, when, and what happens if you wait? That’s what this page covers.

Who Needs to Take the FE Exam?

The FE exam is required for any engineer who wants to eventually become a licensed Professional Engineer (PE). Specifically, the following groups of people need to take the FE exam:

• Engineering students in their final year — Most engineers take the FE exam during their senior year of college, while the material is still fresh. NCEES allows students to sit for the exam before they graduate, which is the most common approach.
• Recent engineering graduates — If you didn’t take it in school, the next best window is immediately after graduation. The longer you wait, the harder it gets — engineering fundamentals start to fade fast once you’re in a job and not actively reviewing them.
• Working engineers pursuing PE licensure — If you’ve been in the workforce for years and never took the FE exam, you still need to take it before you can sit for the PE exam in most states. There’s no expiration date on when you can take it, but there is a cost to waiting.
• Engineers changing states — In rare cases, engineers with PE licenses in one state may need to address FE exam requirements when pursuing licensure in a new state, depending on reciprocity agreements.

If you have no interest in ever becoming a PE, you technically don’t need to take the FE exam. But if there’s any chance you’ll want that PE license down the road — take the exam now. It only gets harder to pass the further you get from your engineering education.

Who Does NOT Need to Take the FE Exam?

Not every engineer who needs to take the FE exam is required to do so in the traditional sense. A handful of exceptions exist:

Engineers in non-licensure roles. Many engineering positions — particularly in software, research, and private industry — don’t require a PE license. If your career path will never require you to sign off on public projects, stamp drawings, or hold formal licensure, the FE exam may not be mandatory for you. That said, having your EIT designation still carries professional weight.

Engineers in certain states with experience-based pathways. A small number of states allow engineers with significant documented work experience to bypass the FE exam entirely and apply directly for PE licensure. California and a few others have historically offered this pathway, though the requirements are stringent. If you think this applies to you, contact your state licensing board directly to verify.

Engineers already licensed in another country. International engineers with PE-equivalent licensure in their home country may have alternative pathways to U.S. licensure through NCEES credentials evaluation. The FE exam may or may not be required depending on the agreement between NCEES and your country’s licensing body.

Eligibility Requirements for the FE Exam

Understanding who needs to take the FE exam also means understanding who is eligible. NCEES sets the base standards, but each state licensing board has its own eligibility rules. Here’s what applies in most states:

Engineering students and graduates from ABET-accredited programs. The standard eligibility path is a bachelor’s degree (or near completion of one) from an ABET-accredited engineering program. Most students take the exam in their senior year under this pathway.

Engineers with non-ABET accredited degrees. If your degree isn’t from an ABET-accredited program, you may still be eligible — but your transcripts will need to go through a manual review by your state licensing board. Some states are more flexible than others. Check your specific state’s requirements before assuming you’re ineligible.

Engineers with no engineering degree. In most states, engineers without an engineering degree can qualify for the FE exam through documented work experience — typically 4+ years of progressive engineering experience under a licensed PE. The documentation requirements are substantial, so start gathering records early if this is your pathway.

The key takeaway: if you’re not sure whether you’re eligible, contact your state licensing board. Don’t assume ineligibility because your path doesn’t look like the standard route.

When Should You Take the FE Exam?

This question matters as much as who needs to take the FE exam — because timing dramatically affects your odds of passing.

The best time is your senior year of college. You’re actively studying engineering material, the concepts are fresh, and you haven’t yet developed the professional tunnel vision that comes from spending years in a single specialty. Take it before graduation and you’re dealing with breadth you already know. Wait until five years into your career and you’re relearning thermodynamics from scratch while working full time.

The second-best time is within 6 months of graduation. If you didn’t take it in school, do it immediately after. Every month you wait is a month of knowledge erosion. Engineers who take the exam 2-3 years after graduation consistently report that preparation takes significantly longer than those who took it while in school.

There’s no wrong time — just harder times. If you’re 10 years into your career and deciding you want your PE, you absolutely can still take the FE exam. Plenty of experienced engineers do. But go in with eyes open: you’ll need to budget real study time to rebuild the foundational breadth the exam covers.

The FE exam is offered year-round at Pearson VUE testing centers, so there’s no waiting for a specific testing window. Once you’re ready to register, you can typically schedule within a few weeks.

What Disciplines Does the FE Exam Cover?

The FE exam is available in seven discipline-specific versions. When deciding who needs to take the FE exam and which version, engineers choose based on their background:

• FE Civil — most common version, covers structural, geotechnical, transportation, environmental, and construction topics
• FE Mechanical — thermodynamics, fluid mechanics, materials, mechanical design
• FE Electrical and Computer — circuits, electronics, signals, computer systems
• FE Chemical — thermodynamics, mass transfer, reaction engineering, process design
• FE Industrial and Systems — operations research, manufacturing, quality control
• FE Environmental — water quality, air quality, solid waste, environmental regulations
• FE Other Disciplines — a catch-all version for engineers whose background spans multiple areas or doesn’t fit neatly into one of the above

You don’t have to take the version that exactly matches your degree. Many engineers take the FE Other Disciplines exam if their background is mixed or if they studied a program that doesn’t map cleanly to one of the specific versions. Choose the version where you have the strongest foundation — that’s the one you’re most likely to pass.

What Happens After You Pass the FE Exam?

Passing the FE exam makes you eligible to apply for your Engineer in Training (EIT) certification through your state licensing board. Here’s the sequence:

1. NCEES notifies you of your results — usually within 7-10 days of your exam
2. You apply for EIT certification with your state board — this is a separate application from your NCEES exam registration, and processing times vary by state
3. You begin accumulating engineering experience — most states require 4 years of progressive experience under the supervision of a licensed PE before you can sit for the PE exam
4. You take the PE exam — the final step toward becoming a fully licensed Professional Engineer

The EIT designation you earn after passing the FE exam doesn’t expire in most states. Once you have it, you have it — but the clock doesn’t start on your PE eligibility until you’re actively logging qualifying engineering experience.

Why So Many Engineers Put It Off — and Why That’s a Mistake

Understanding who needs to take the FE exam is straightforward. What’s less obvious is why so many engineers who know they need to take it keep putting it off.

The most common reasons: they feel unprepared, they’re busy with work or life, or they assume they’ll get to it eventually. The problem is that “eventually” gets harder every year. Here’s what actually happens when you wait:

Your study time requirement increases. An engineer who takes the FE exam in their senior year might need 100-150 hours of focused preparation. The same engineer taking it 5 years after graduation often needs 250-400 hours — because they have to rebuild knowledge across subjects they haven’t touched since college.

Your schedule gets less flexible. In school you have structure, study groups, and academic momentum. In your career you have deadlines, meetings, family commitments, and a hundred things competing for the same hours you need to study.

The window of motivation narrows. Most engineers feel the pull toward licensure most strongly early in their career. The further you get from school, the easier it is to rationalize that your career is going fine without a PE and you don’t really need it. That rationalization has derailed a lot of engineering careers.

If you know you want a PE license eventually — take the FE exam now. Not next year. Now.

Final Thoughts | Who Needs to Take the FE Exam

Who needs to take the FE exam? Any engineer who wants to become a licensed Professional Engineer. And if that’s you, the best time to take it is as early in your engineering career as possible — ideally before or immediately after graduation, while the material is still fresh and the path forward is still clear.

The FE exam is not easy. It covers a wide range of engineering fundamentals and requires real preparation. But it’s very passable with the right approach — structured study, consistent practice, and a clear plan.

That’s exactly what Prepineer was built to help you do. We’ve helped thousands of engineers build a study plan that works around their schedule, master the topics they struggle with, and walk into exam day with confidence. Start your free 7-day trial and let’s map out your path to passing the FE exam.