Audiologists are professionals engaged in autonomous practice to promote healthy hearing, communication competency, and quality of life for persons of all ages through the prevention, identification, assessment, and rehabilitation of hearing, Auditory function, balance, and other related systems. They facilitate prevention through the fitting of hearing protective devices, education programs for industry and the public, hearing screening/conservation programs, and research. The Audiologist is the professional responsible for the identification of impairments and dysfunction of the Auditory, balance, and other related systems. Their unique education and training provides them with the skills to assess and diagnose dysfunction in hearing, auditory function, balance, and related disorders. The delivery of audiologic (re)habilitation services includes not only the selecting, fitting, and dispensing of hearing aids and other assistive devices, but also the assessment and follow-up services for persons with cochlear implants. The Audiologist providing audiologic (re)habilitation does so through a comprehensive program of therapeutic services, devices, counseling, and other management strategies. Functional diagnosis of vestibular disorders and management of balance rehabilitation is another aspect of the professional responsibilities of the Audiologist. Audiologists engage in research pertinent to all of these domains.

Audiologists currently hold a master's or doctoral degree in Audiology from a program accredited by the Council on Academic Accreditation in Audiology and Speech-Language Pathology (CAA) of the American Speech-Language-Hearing Association (ASHA). ASHA-certified Audiologists complete a supervised postgraduate professional experience or a similar supervised professional experience during the completion of the doctoral degree as described in the ASHA certification standards. Beginning January 1, 2012, all applicants for the Certificate of Clinical Competence in Audiology (CCC-A) must have a doctoral degree from a CAA-accredited university program. Demonstration of continued professional development is mandated for the maintenance of the Certificate of Clinical Competence in Audiology. Audiologists are licensed or registered by the state in which they practice.