The Board shall ensure that the examination consists of a written part and a practical part. The written examination shall utilize the most recent competency model licensing examination from the Education Division of the International Hearing Society. The Board shall ensure that the practical part of the examination tests proficiency in: Pure tone audiometry, including testing and recording of air and bone conduction; Speech audiometry, including speech reception and speech discrimination testing; Masking methodology; Choice and adaptation of hearing aids; Testing of hearing aids; Maintenance and basic repair of hearing aids; Taking of ear mold impressions; and Other techniques and procedures that may be required to fit hearing aids. Nothing in the examination shall imply that the applicant shall possess the degree of medical competence normally expected of physicians. Passing Score. Written Examination. The Board shall determine the passing score for the written examination. If a candidate does not earn a passing score on the written examination, the candidate shall have to retake the entire written examination. Practical Examination. An applicant shall obtain a score of at least 80 percent on the practical examination. If the licensee's limited license has not expired and the licensee passed the examination within the past 2 years, the Board shall accept prior passage of the written examination, the practical examination, or both.