Americans with Disabilities Act service-animal rules (1990)
The ADA required public transit agencies to allow service animals for people with disabilities. Federal rules define service animals as dogs individually trained to do work or tasks; emotional support animals do not qualify.
Transit agencies adopted policies distinguishing service animals from pets.
The dog-only definition became the baseline for disputes over unusual animals on planes and buses.
DDOT cited the ADA in its statement, and the horse owner called Raven an emotional support animal.
