Which engineers need a PE license and which can skip it
If the things you design end up in public use as a road, a water main, a building or the power and air systems inside one, get the PE license and start on it early. If you design a product your employer sells, you can probably go a whole career without one. The difference comes down to who is allowed to sign the drawings.
What the license actually lets you do
A professional engineer, or PE, is an engineer a state has licensed to practice. The license is mostly about one act. According to NCEES on the path to licensure, only a licensed engineer can prepare, sign, seal and submit engineering drawings. Putting your seal on a drawing amounts to saying you stand behind the design.
Think about why anyone would want that. If a city is going to approve a drainage plan for a new subdivision, it would like the plan to carry the name of somebody who can lose a license if the drainage is wrong. The seal is how it gets that person. A homeowner hiring an engineer to look at a cracked foundation wants the same thing, for the same reason.
The Florida Board of Professional Engineers lists what a license lets you do: sign and seal engineering documents, offer engineering services to the public under your own name, qualify an engineering business, perform consulting services and bid for government contracts. Every item on that list is a way of selling engineering to somebody other than your own employer. Hold onto that, because it explains almost everything about who needs the license.
Why plenty of engineers never get one
So the license is about engineering offered to the public. Engineering done inside a company for its own products is a different matter. State laws can carve it out with an exemption from licensing. The rules vary by state, so it helps to look at one in detail.
The Texas board’s page on licensing exemptions says its licensing law does not apply to a private company’s activities related to its own research, development, design, fabrication and production, as long as the person does not offer engineering services to the public. A full-time employee of a privately owned utility can be exempt too, if they work only for the utility and do not hold final authority over its engineering designs.
Follow that logic one step further. A mechanical engineer designing pumps for a pump maker in Texas is doing the maker’s own design work, so the exemption looks built for them. Move the same engineer to a consulting firm designing the pump room for a hospital and they are now selling design to a client.
There is a second release valve. The Florida board notes that exemptions allow engineers to work under the supervision of a licensed PE, which is part of why not every engineer gets licensed. So a consulting firm can employ a lot of unlicensed engineers, because a PE reviews and seals what the team produces. The unlicensed engineers do real design work. They just cannot be the last name on it.
Discipline by discipline
NCEES writes PE exams in about two dozen subjects, listed on its PE exam page, from agricultural engineering to structural, with separate civil tracks for construction, geotechnical, structural, transportation and water work. An exam existing for your discipline tells you licensed practice happens there. It does not tell you your job needs it. The useful question is whether your work leaves the building as a sealed drawing.
| Discipline | Get the PE early if you want | You can probably wait if you do |
|---|---|---|
| Civil engineering | Site development, roads, drainage or water design for consultants and public agencies | Field and construction roles at a contractor, at least for the first few years |
| Structural engineering | Building, bridge or industrial structure design | Very little, so plan on licensure if you stay in design |
| Mechanical engineering | HVAC, plumbing or fire protection design for buildings at a consulting firm | Product, machine or equipment design at a manufacturer |
| Electrical engineering | Power distribution or building electrical design at a consulting firm | Electronics, chips or embedded hardware at a product company |
| Controls and chemical engineering | Consulting on plants and public systems you do not work for | Automation or process roles inside your own employer’s plant |
| Aerospace, biomedical and software engineering | A move into consulting on public or regulated work | Most roles at a company that ships its own product |
Mechanical and electrical engineers are the interesting case, because the same degree splits into two careers. One designs systems for buildings and the grid, where the seal matters, and the other designs products, where the exemption usually does the work.
How you get one
The NCEES licensure overview lays out the standard route in four pieces.
- Earn a bachelor’s degree from an EAC/ABET-accredited engineering program, which licensing boards generally require.
- Pass the Fundamentals of Engineering exam, known as the FE.
- Build up acceptable, progressive and verifiable work experience, which most states set at four years.
- Pass the PE exam in your discipline and apply to the board in the state where you plan to practice.
NCEES also notes that many states offer other paths to licensure and tells candidates to verify the requirements where they plan to practice. Treat the four steps as the default and your state board’s rules as the final word.
The FE exam is computer-based and given year-round at Pearson test centers. It has 110 questions in a 6-hour appointment. NCEES says it is designed for recent graduates and students who are close to finishing an undergraduate engineering degree, so take it in your final year or soon after. Waiting five years to sit an exam built for new graduates is a choice you can make, but it is a strange one.
The experience is the slow part, and the clock only runs on engineering work a board will accept. So if there is any chance you want the license at 30, the time to set it up is your first job. A role where licensed engineers do the kind of design you would want counted is worth more than it looks, even at the same pay as one where they do not.
If your work might cross state lines, an NCEES Record keeps your transcripts, employment history, references and exam results in one verified file that NCEES sends to each new board for you.
What it changes in the jobs open to you
Start with a consulting firm whose product is a sealed set of drawings. It can only deliver as many sealed sets as its licensed engineers can responsibly sign. If you want to be one of the engineers who signs, the PE is the ticket.
The license also changes what you can do on your own. Per the Florida board, a licensed engineer can offer services to the public under their own name and qualify an engineering business. If you ever want your own civil or building design firm, you will probably either hold the license yourself or hire someone who does. NCEES adds that an increasing number of employers at all levels are requiring licensure, which matters if you think you might move toward public work later.
On the product side, the license changes less. A PE on a medical device engineer’s resume shows discipline and some breadth, but in a state with an industrial exemption the company’s own design work does not need a seal. It will not hurt. It just is not the thing standing between you and the next job.
What to do this year
If you are a civil or structural engineer, take the FE now and treat the PE as part of the job. If you are in mechanical engineering roles or electrical engineering roles, work out which side of the exemption your career is on. Building systems and power design point toward the license. Product work at a manufacturer does not, though passing the FE early keeps the door open at little cost. Then read your own state board’s rules before you plan around anyone else’s.
