Yes, under Department of Transportation (DOT) Americans with Disabilities Act (ADA) regulations at 49 C.F.R. Section 37.167(b), the minimum requirement for fixed route stop announcements by a transit provider is that stops be announced (by personnel or a recording system) at least at transfer points with other fixed routes, other major intersections and destination points, and intervals along a route sufficient to permit individuals with visual impairments or other disabilities to be oriented to their location. Further, the transit personnel must announce any stop upon request of an individual with a disability. For the text of 49 C.F.R. Section 37.167(b) and its corresponding section in Appendix D, please visit this link.