Why Get a PE License?
The Professional Engineer (PE) license is the gold standard credential in the engineering profession. A PE can sign and seal engineering drawings, certifying to the public that the design meets accepted standards of practice. In most U.S. jurisdictions, it is illegal to offer engineering services to the public without a PE license. Beyond the legal requirement, the PE signals career advancement, higher earning potential, and the ability to work independently as an engineering consultant.
Survey data from the National Society of Professional Engineers (NSPE) consistently shows that licensed PEs earn 10–20% more than non-licensed engineers in comparable roles. In consulting engineering firms, PE licensure is typically required for advancement to project engineer, project manager, or principal roles.
The Four Steps to PE Licensure
Step 1: ABET-Accredited Engineering Degree
Most state PE licensing boards require a degree from an ABET-accredited engineering program (Bachelor of Science in Civil, Electrical, Mechanical, Structural, Chemical, etc.). ABET accreditation ensures the program meets minimum competency standards. Non-ABET degrees are accepted in some states but typically require a longer work experience period. Engineering technology degrees (BSET) are treated differently from engineering degrees — check your state board's requirements.
International engineering degrees require evaluation by NCEES or an approved credential evaluation service. Many international degrees are accepted; the process adds time but is not a barrier for most candidates from accredited foreign programs.
Step 2: The FE Exam (Fundamentals of Engineering)
The FE exam is the first licensure exam and is typically taken during the final year of an engineering program or shortly after graduation. NCEES administers the FE exam as a computer-based test (CBT) at Pearson VUE testing centers. Key facts:
- Duration: 5 hours 20 minutes, 110 questions (multiple choice)
- Format: computer-based, open-book with NCEES-provided reference handbook (available online in advance)
- Disciplines: Chemical, Civil, Electrical and Computer, Environmental, Industrial, Mechanical, Other Disciplines
- Pass rates: approximately 70–75% for first-time takers from accredited programs
- Cost: $175 exam fee (varies by testing center)
Upon passing, candidates receive the Engineer in Training (EIT) designation in most states, or Engineer Intern (EI) in some jurisdictions. This credential is state-specific but NCEES maintains the record centrally.
Step 3: Work Experience (4 Years)
Before taking the PE exam, candidates must accumulate a minimum of 4 years of progressive engineering experience under the supervision of a licensed PE. "Progressive" means increasing responsibility over time — not simply 4 years of the same task. What counts:
- Engineering design work (calculations, drawings, specifications)
- Project management of engineering projects
- Engineering research and development
- Teaching engineering at the college level (in some states)
Experience references must be licensed PEs who can attest that the work was substantive engineering. Most state boards require 3–5 PE references. Graduate school time counts in some states (up to 1 year for a master's, 2 years for a Ph.D.) toward the experience requirement.
Step 4: The PE Exam
The PE exam (Principles and Practice of Engineering) is an 8-hour, 80-question exam offered in multiple engineering disciplines. As of 2024, NCEES has transitioned all PE exams to CBT format at Pearson VUE testing centers. Exams are offered year-round, unlike the prior twice-yearly paper-based schedule.
| PE Discipline | Breadth Topics | Depth Modules | Approx. Pass Rate |
|---|---|---|---|
| Civil | Breadth: all civil topics | Construction, Geotech, Structural, Transportation, Water Resources | 55–65% |
| Electrical — Power | Power systems, circuits | Power delivery, power electronics, rotating machines | 55–70% |
| Electrical — Electronics | Electronics, signals | Electronics, signal processing, communications | 55–65% |
| Mechanical | Breadth: all mech topics | HVAC/Refrigeration, Machine Design, Thermal/Fluid Systems | 60–70% |
| Structural | Structural breadth | Breadth (vertical structures), buildings, bridges | 45–60% |
| Environmental | Environmental systems | No separate modules | 60–70% |
| Chemical | Chemical engineering | No separate modules | 65–75% |
| Fire Protection | Fire protection systems | No separate modules | 55–65% |
The PE exam is open-book — candidates may bring approved references (specific to each state board). For most disciplines, the NCEES-provided reference handbook is the only approved reference. For Civil and Structural, candidates typically bring the AASHTO, AISC, ACI 318, and other code books. Check your state board's approved reference list before studying.
Choosing Your PE Discipline
Your PE license is discipline-specific — a PE in Civil Engineering cannot legally sign structural drawings (unless also licensed as SE) or electrical drawings. Choose your discipline based on your primary practice area:
- Civil — general practice for site/civil engineers, with depth module in your specialty
- Structural — for engineers focusing on building or bridge structural design; SE license may be required for certain projects in California and Illinois
- Electrical — Power — for power systems engineers, utility protection engineers, and electrical design engineers
- Electrical — Electronics — for hardware and electronics engineers; less commonly required for consulting practice
- Mechanical — HVAC/R — for building mechanical and HVAC engineers
- Mechanical — Machine Design — for equipment and product engineers
- Fire Protection — for fire protection engineers; required for signing fire suppression and fire alarm design documents in some jurisdictions
Many engineers earn multiple PE licenses over their careers. A structural engineer may hold both a PE-Structural and an SE license. A consulting MEP engineer firm principal may hold PE licenses in Mechanical and Electrical.
State Licensure Application
After passing the PE exam, candidates apply for licensure with their state engineering board. Requirements vary but typically include:
- NCEES exam score transcript
- Experience verification forms completed by PE references
- Degree verification
- Application fee ($50–$200 depending on state)
- Character references (1–3 non-engineer references in some states)
Processing time varies from 2 weeks (online boards) to 3–6 months (high-volume states like California, Texas, New York). The license is issued by state — you are not a "national PE" but a PE licensed in a specific state (or multiple states through comity).
PE License Maintenance (PDH / CEU)
All states require continuing education to maintain PE licensure. Most states require 30 Professional Development Hours (PDHs) per 2-year renewal cycle. Acceptable PDH activities include:
- Technical seminars, webinars, and conferences
- College courses in engineering or related subjects
- Teaching engineering courses
- Writing technical papers or articles
- Self-study with completion documentation (some states limit self-study PDHs)
Track PDHs carefully — most state boards audit a percentage of licensees each renewal cycle. Falsifying PDH records is grounds for license revocation.
PE Exam Study Timeline
Recommended study timeline for a well-prepared candidate:
- 6 months out: select depth module, acquire approved reference materials, identify your weak topic areas
- 3–6 months: systematic review of all breadth topics (2–3 hours per weeknight), working NCEES practice problems
- 2–3 months: deep dive on depth module, work all NCEES practice exams in the depth area
- Final month: timed full-length practice exams, tab reference books for speed, practice problem retrieval under time pressure
- Final week: light review only, confirm exam logistics, prepare reference materials
The most common study resources: NCEES practice exams (essential — these are the closest to actual exam format), PPI (Kaplan) PE review manuals, School of PE prep courses, and Chelapati Krishnamurthy for Civil PE. For Electrical PE Power, the PPI reference manual combined with NCEES practice problems is the standard combination.
NCEES Record (Formerly NCEES Score Record)
NCEES maintains your complete licensure record — FE score, PE score, education verification, and experience records — in a centralized system. When applying for licensure in a second state (comity), you submit an NCEES Record verification request rather than repeating the full application. Maintain your NCEES account details and keep contact information current, as PE scores do not expire but the NCEES record must be accessible when applying for comity years later.