A licensed audiologist shall, upon the consummation of a sale of a hearing aid, keep and maintain records in his or her office or place of business at all times and each such record shall be kept and maintained for a seven-year period. These records shall include:
(a)
Results of test techniques as they pertain to fitting of the hearing aid.(b)
A copy of the written receipt required by Section 2539.4 and the written recommendation and receipt required by Section 2539.6, when applicable.
Source:
Section 2539.10, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=2539.10..