Hawaii Revised Statutes Division 2. Business § 451A-14.1

(a) No person engaged in the fitting and selling of hearing aids shall sell, barter, offer to sell or otherwise knowingly establish a commercial relationship with a potential purchaser without first obtaining and maintaining in the dealer's possession written authorization by a physician that the purchaser or potential purchaser has been examined by the physician and that the physician has prescribed or approved a hearing device; provided that in the case of a child ten years of age or under, the written authorization must be by an otorhinolaryngologist.

(b) For the purposes of subsection (a) the written authorization must be signed by the physician or otorhinolaryngologist within six months prior to the date of sale, barter, offer, or commencement of a commercial relationship; provided that the six-month limit shall not apply if the written authorization of the physician or otorhinolaryngologist states that a return visit of the patient is not necessary for subsequent purchases of a hearing device.

(c) For the purposes of subsection (a), the hearing aid dealer and fitter may offer persons eighteen years of age or older an opportunity to waive the requirement of a medical examination if the hearing aid dealer and fitter:

(d) Every hearing aid dealer and fitter licensed pursuant to this chapter shall keep a suitable book or file, or a microfilm of the book or file, in which shall be preserved, for a period of not less than five years, every authorization by physicians or otorhinolaryngologists received pursuant to this section and every statement executed in accordance with subsection (c)(3). The book, file, or microfilm of the authorizations and statements shall at all times be open to inspection by the director and other law enforcement agencies.