Many states have an agreement with the manufacturer.
I think Indiana and Oklahoma also have the same arrangement. I read your article about someone with a dyslexic 12 yr old son using the reading pen, reporting that it was too s.l.o.w. I have two questions. My adult friend has a visual impairment where he can read whole sentences, but runs into trouble when words are longer than say, five letters, and often wants to know the word. Also, he sometimes needs to understand forms, proposals, etc. and is insecure about his understanding of them, since he is guessing a number of words.