The general steps to become a professional engineer are presented below. The details of deadlines and required documents may vary from one state to another: 1. Graduate from ABET-accredited engineering program. 2. Pass the fundamentals of engineering (FE) exam. 3. Work as an engineer and gain experience of four years under the supervision of a professional engineer. 4. Pass the principles and practice of engineering (PE) exam. The applicant cannot appear for the PE exam before passing the FE exam.