(a) Every licensee engaged in the practice of dealing in or fitting of hearing aids shall, prior to the sale or the fitting of a hearing aid intended to be worn or used by any person under eighteen years of age, first ascertain whether such person has within the next preceding six months been examined for the defective or impaired hearing condition sought to be relieved by an otolaryngologist or other duly licensed physician. If such person has been so examined, the licensee shall, prior to the sale or fitting of such hearing aid, obtain from such otolaryngologist or physician written authority to fit a hearing aid. If such person has not been so examined, the licensee shall not proceed to the sale or fitting of a hearing aid until after such person has been so examined. If the prospective user is eighteen years of age or older, the hearing aid dispenser may afford the prospective user an opportunity to waive the medical evaluation requirement provided that the hearing aid dispenser:
(1) Informs the prospective user that the exercise of the waiver is not in the user's best health interest;