Requirement four states that organizations and their employees must allow service animals in the public areas of the premises.
Service animals are working animals that are trained to meet the needs of their handlers with a disability.
A service animal might wear a harness or vest. Many, but not all handlers carry documentation, such as a letter from a health professional or service animal trainer, which states that they require the animal because of a disability-related need.
A handler need not disclose a diagnosis or personal health information.