Environmental engineers are encouraged to become licensed as a professional engineer (PE). Licensure generally requires the following:
- A degree from an engineering program accredited by ABET
- A passing score on the Fundamentals of Engineering (FE) exam
- Relevant work experience
- A passing score on the Professional Engineering (PE) exam
The initial FE exam can be taken after graduation. Engineers who pass this exam are commonly called engineers in training (EITs) or engineer interns (EIs). After getting suitable work experience, EITs can take the second exam, called the Principles and Practice of Engineering.
Several states require continuing education for engineers to keep their licenses. Most states recognize licensure from other states if the licensing state's requirements meet or exceed their own requirements.
After licensing, environmental engineers can earn board certification from the American Academy of Environmental Engineers and Scientists. This certification shows that an environmental engineer has expertise in one or more areas of specialization.