4 ms·

It's legislated by individual states. A well-known example is Mats Järlström in Oregon, USA. https://ij.org/press-release/oregon-engineer-wins-traffic-light-ti

• bee_rider 2y ago
  That press release seems to be specifically about their failure to get him to stop using the term “engineer,” and the fact that the legal system recognizes a difference between it and the more protected term “professional engineer.”