Interpreting is a professional field. What was once done by whoever was bilingual now has an established certification process. There are less and less reasons to work with unvetted providers. This timeline tells the story on the West Coast, where I live. I am from Oregon, where I am certified as a healthcare interpreter and a court interpreter. The story is told from an Oregon perspective. However, nothing happens in isolation. Oregon often works in partnership with the other West Coast states, or observes their work closely. What happens in the court interpreting field affects the work in the healthcare interpreting field. The story would not be complete without the federal context. Therefore, there are elements from all West Coast states and the history of court and healthcare certification is intermingled.