It's also protected (though rarely enforced) in some states. Unless they've changed the law, it's illegal to call yourself and engineer in Texas unless you're

It's also protected (though rarely enforced) in some states. Unless they've changed the law, it's illegal to call yourself and engineer in Texas unless you're a Professional Engineer licensed by the state (or another state - I think there's reciprocity there - if only we could get that for carrying firearms...) This change was made sometime in the late '90s, and I should have taken advantage of the grandfathering opportunity which would have made PE certification easier. That said, I've never needed a P.E. stamp, since on any project big enough to require that level of formality, I had access to in-house or contract engineers that could sign off.