 AAI is general term that encompasses any intervention or treatment that includes an animal in a therapeutic context such as Emotional-Support Animals, Service/Assistance Animals (i.e., trained animals that assist and support with daily activities), and Animal Assisted Activity (AAA).AAT contains sub-sections based on the type of animal, the targeted population, and how the animal is being incorporated into the therapeutic plan.The most commonly used types of AAT are canine-assisted therapy and equine-assisted therapy.