As used in sections 20-150 to 20-159, unless the context otherwise requires:
(1) Appointing authority means the Legislature, a legislative committee, law enforcement personnel, or any court of the state required to provide a qualified interpreter pursuant to sections 20-150 to 20-159;
(2) Auxiliary aid includes, but is not limited to, qualified sign language interpreters, oral interpreters, other interpreters, notetakers, transcription services, written materials, assistive listening devices, assisted listening systems, videotext displays, and other visual delivery systems;
(3) Deaf or hard of hearing person means a person whose hearing impairment, with or without amplification, is so severe that he or she may have difficulty in auditorily processing spoken language without the use of an interpreter or a person with a fluctuating or permanent hearing loss which may adversely affect the ability to understand spoken language without the use of an interpreter or an auxiliary aid;
(4) Intermediary interpreter means any person, including any deaf or hard of hearing person, who is able to assist in providing an accurate interpretation between spoken English and sign language or between variants of sign language in order to facilitate communication between a deaf or hard of hearing person and a qualified interpreter;
(5) Oral interpreter means a person who interprets language through facial expression, body language, and mouthing;
(6) Qualified interpreter means a person who demonstrates proficiencies in interpretation or transliteration and is able to interpret effectively, accurately, and impartially, both receptively and expressively, using any necessary specialized vocabulary; and
(7) Tactile interpreter means a person who interprets for a deaf-blind person. The degree of deafness and blindness will determine the mode of communication to be used for each person.