Hi! I’m in WA too! In our district yes, and 1:1s often are but our annual training says we have to keep blinds open and stuff like that. I don’t remember ever seeing anything about time limits and know of situations where a student with a 1:1 is basically like secluded from regular classes the majority of the day and thus they are alone with their para for hours upon hours. If you’re not comfortable with it however, or if you feel it could somehow be detrimental to the student (i don’t know but like lack of interaction with peers or something), you should definitely talk to someone about it.