How to become a plumbing engineer?

A plumbing engineer is trained or experienced in designing plumbing systems. Plumbing engineers, or plumbing design engineers, are not necessarily state-licensed engineers, though some may be both. Many plumbing engineers have completed a bachelor’s degree in mechanical engineering. You can also learn about plumbing in a vocational or trade school. The American Society of Plumbing Engineers offers a Certified in Plumbing Design (CPD) program that includes training and an examination.