In the US, to become a licensed engineer you need to get an accredited bachelor’s degree in it, and then pass the “Fundamentals of Engineering” exam to become a state-licensed “Engineer in Training (EIT),” and then work in the field for four years, and then pass the “Principles and Practice of Engineering” exam to become a state-licensed “Professional Engineer (PE).” The degree is just the first step.
Does Australia let civil engineers certify construction plans straight out of college? (Answer: apparently – and surprisingly – some states do!)