Emotional Support animals are not by default considered service animals by the ADA. (IANAL and State / Local laws may say different things.) They must be traine

Emotional Support animals are not by default considered service animals by the ADA. (IANAL and State / Local laws may say different things.) They must be trained to perform at least one specific task in order to qualify as a service animal under the ADA. You are allowed to ask two specific questions about dogs: "Is the dog a service animal required because of a disability?" and "What work or task has the dog been trained to perform?" It seems like something that Uber could allow a user to input, and prevent their drivers from rejecting those users for the presence of the animal. Animals do always have to be under control of the owner though, so if one is not under control that is an acceptable reason to reject them. And I believe the latest guidance is that basically only dogs fall under the service animal category, so random other animals people use for emotional support would not qualify either. The exception seems to be miniature horses for specific limited cases. https://www.ada.gov/regs2010/service_animal_qa.html https://www.ada.gov/regs2010/service_animal_qa.html https://www.ada.gov/service_animals_2010.htm https://www.ada.gov/service_animals_2010.htm