CART stands for Communication Access Realtime Translation. It is a speech-to-text captioning service that benefits people who are late-deafened, hard of hearing, culturally Deaf, who have cochlear implants, and those learning English as a second language. It is used by speakers, presenters, organizations or institutions concerned with ensuring they provide accessibility to their material to the widest audience and those that are use captioning service to understand and participate in meetings and lectures. A secondary use for captioning is for executives, and those interested in Search Engine Optimization.
CART is also referred to as realtime captioning.