No, a student needs to contact their Accessibility Services Counselor each semester, if they need accommodations for classes.
Only if you requested and completed the intake with an Accessibility Counselor.
Instructors are not required to provide any accommodations to a student unless they have a Self-identification letter from the Accessibility Services Counselor with approved accommodations for the course.
Colleges are held responsible to different Federal laws than high schools. This is why you may realize some accommodations from high school are not considered "reasonable" in the college environment.