Ill. Admin. Code tit. 77, § 682.420
a) The written examination shall cover those areas of knowledge specified in Section 9 of the Act. A minimum passing grade, for the written examination, shall be 70 percent on each section of the written examination.
b) The practical examination shall cover those areas of knowledge specified in Section 9 of the Act. A minimum passing grade for the practical examination shall be 70 percent on each section of the practical examination.
The examination shall consist of written and practical tests administered by the Department or its authorized designee. The examinations given, both written and practical, shall be the Uniform Written and Practical Examinations for Hearing Instrument Dispensers from the International Institute for Hearing Instrument Studies, International Hearing Society (IIHIS, IHS), or an examination approved, developed or sanctioned by the Department that meets the criteria in subsections (a) and (b). These tests shall be administered at least four times during a calendar year.
(Source: Amended at 37 Ill. Reg. 19331, effective November 13, 2013)