How to Become a Professional Engineer in the USA: FE, EIT/EI, PE Exam and License Steps
Earning the Professional Engineer (P.E.) designation is the highest standard of professional recognition in U.S. engineering. Only licensed P.E.s can sign and seal engineering documents, offer engineering services directly to the public, and take legal responsibility for engineering work.
The path from engineering student to licensed P.E. typically takes 8 to 12 years including your degree, and involves a specific sequence of milestones: education, the FE Exam, EIT/EI certification, qualifying experience, the PE Exam, and state licensure. This guide covers every step.
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What a Professional Engineer Is
A Professional Engineer (P.E.) is an engineer who has been licensed by a state board to practise engineering. The P.E. designation carries legal authority — only licensed P.E.s can sign off on engineering plans, submit official engineering reports, and take professional responsibility for designs that affect public safety.
The P.E. license is issued by individual states, not by a federal body. Each state has its own requirements, though most follow the model rules published by NCEES.
Why P.E. Licensure Matters
P.E. licensure is legally required for engineers who stamp or seal drawings and calculations, offer engineering services directly to the public, or hold final responsibility for engineering projects that affect public safety, health, or welfare.
Beyond legal requirements, the P.E. designation carries significant career advantages: higher salary potential (P.E.s earn 10-20% more on average), greater job security, eligibility for leadership roles, and professional credibility with clients and regulators.
Education Requirements (ABET)
The standard education requirement is a four-year engineering degree from an EAC/ABET-accredited programme. Most state boards require this as the baseline, though some accept related degrees with additional experience.
Some states have graduated experience requirements based on education: ABET graduates typically need 4 years of experience, while non-ABET graduates or engineering technology graduates may need 6-8 years. A graduate degree can sometimes reduce the experience requirement.
Step 1 — FE Exam
The Fundamentals of Engineering (FE) Exam is a computer-based, 110-question test administered by NCEES. It tests broad undergraduate engineering fundamentals across one of seven discipline-specific versions.
Most candidates take the FE Exam during their senior year of college or shortly after graduation. The exam fee is $225, and results are reported as pass/fail within 7-10 business days.
Step 2 — EIT/EI Certification
After passing the FE Exam, you apply to your state board for Engineer-in-Training (EIT) or Engineering Intern (EI) status. This is a formal designation — not a license — that confirms you are on the licensure pathway.
Some states grant EIT/EI automatically upon FE passage; others require a separate application. The designation allows you to use the EIT or EI title after your name.
Step 3 — Engineering Experience (4+ Years)
This is typically the longest phase. Most states require a minimum of four years of qualifying, progressive engineering experience after earning your degree. The experience must be supervised or verified by a licensed P.E.
Qualifying experience means engineering work of increasing complexity and responsibility. Design, analysis, project management, construction oversight, and engineering research all typically qualify. Pure sales, marketing, or administrative work generally does not count.
Document your experience carefully from day one. Most states require detailed descriptions of projects, your specific engineering contributions, and verification from a licensed P.E. supervisor.
Step 4 — PE Exam
The Principles and Practice of Engineering (PE) Exam is the second and final NCEES exam. Unlike the FE, which tests fundamentals, the PE Exam tests discipline-specific advanced practice. Most PE Exams are 8 hours with 80 questions.
The PE Exam is offered in numerous disciplines including Civil (with sub-disciplines), Mechanical, Electrical and Computer, Chemical, Environmental, Structural (16-hour exam), and many more. The exam fee is $375.
Step 5 — State Licensure Application
After passing the PE Exam, you submit a licensure application to your state board. This typically includes your PE Exam results, documentation of qualifying experience, professional references (usually 3-5 licensed P.E.s), and payment of licensure fees.
Processing time varies from 2 to 12 weeks. Once approved, you receive your P.E. license number and can legally use the Professional Engineer title and seal engineering documents.
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The Complete Timeline
The typical total time from starting your engineering degree to receiving your P.E. license is 8 to 9 years. Some candidates complete it faster; others take longer due to career changes, state transfers, or exam retakes.
| Milestone | Typical Duration | Cumulative Time |
|---|---|---|
| Bachelor's degree (ABET) | 4 years | 4 years |
| FE Exam | Senior year or post-graduation | 4 years |
| EIT/EI certification | 2-8 weeks after FE passage | 4 years |
| Qualifying experience | 4+ years | 8 years |
| PE Exam | During or after experience period | 8 years |
| State licensure application | 2-12 weeks after PE passage | 8-9 years |
Cost Breakdown Across the Entire Pathway
| Expense | Cost Range | When |
|---|---|---|
| Engineering degree (4 years) | Varies widely | Years 1-4 |
| FE Exam (NCEES fee) | $225 | Year 4 |
| EIT/EI application | $0 - $100 | Year 4 |
| PE Exam (NCEES fee) | $375 | Year 8 |
| State licensure application | $50 - $300 | Year 8 |
| Study materials (FE + PE) | $100 - $1,000 | Ongoing |
| Credential evaluation (international only) | $200 - $500 | If applicable |
| Total (excluding degree) | $750 - $2,500 | — |
International Engineer Considerations
International engineers follow the same pathway but with additional requirements: credential evaluation of their foreign engineering degree, potentially longer processing times for state board approvals, and SSN/ITIN requirements for some state boards.
The good news is that most states accept foreign engineering degrees after evaluation, and foreign work experience typically counts toward the four-year experience requirement (with proper documentation).
Career Benefits of PE Licensure
Licensed P.E.s earn 10-20% higher salaries on average compared to unlicensed engineers in similar roles. They have access to leadership positions that require a P.E., including principal engineer, project engineer of record, and engineering management roles.
P.E. licensure also provides professional mobility — you can transfer your license to other states through comity, and the credential is recognised and respected worldwide. For engineers in consulting, infrastructure, and public works, the P.E. is not optional — it is the industry standard.
Dr. Bruno Grindewald, MD, MRCP
Senior Medical Instructor & Lead Clinical Editor
Dr. Bruno Grindewald is a specialist in postgraduate medical training and clinical diagnostics with over two decades of experience preparing international medical graduates for Royal College sittings and licensing examinations worldwide.
Frequently Asked Questions
How long does it take to become a Professional Engineer?
Typically 8-9 years from starting your engineering degree: 4 years for the degree, then 4+ years of qualifying experience. The FE and PE Exams are taken during this period.
Can I become a PE without a degree?
Some states allow licensure without a traditional engineering degree, but they typically require significantly more years of experience (8-20 years depending on the state). An ABET degree remains the standard path.
Do I need both FE and PE Exams?
In most states, yes. The FE Exam is the first step (earning EIT/EI status), and the PE Exam is the final step. A few states have exceptions for candidates with extensive experience.
Is a PE license valid in all 50 states?
No. P.E. licensure is state-specific. However, most states offer comity (reciprocity) that allows you to transfer your license with simplified paperwork.
What is the PE Exam pass rate?
First-time pass rates for ABET graduates range from 60-80% depending on discipline. Repeat taker pass rates are lower. The PE Civil and PE Mechanical exams have the highest registration numbers.
Can I sign engineering documents without a PE?
No. Only licensed Professional Engineers can sign and seal engineering documents. Using the P.E. title without a license is illegal in all U.S. states.
How much do Professional Engineers earn?
Median salaries for licensed P.E.s range from $85,000 to $130,000+ depending on discipline, experience, and location. P.E.s typically earn 10-20% more than unlicensed engineers.
Do all engineers need a PE license?
No. Many engineers work in industry, manufacturing, technology, and other sectors without PE licensure. However, PE is required for engineers who stamp documents, offer public services, or hold engineering authority.
Can international engineers get a PE license in the USA?
Yes. International engineers must have their credentials evaluated, pass both the FE and PE Exams, and complete qualifying experience. Most states accept foreign engineering degrees after evaluation.
What happens if I fail the PE Exam?
You can retake the PE Exam. NCEES allows re-examination after waiting one testing cycle. Most states do not limit the number of attempts, though some require additional documentation after multiple failures.
Is PE licensure worth it?
For engineers in consulting, infrastructure, public works, and any role that requires engineering authority over public safety, PE licensure is essential. It also provides salary premiums and career advancement opportunities.
