(a)
Hearing aids may be sold by catalog or direct mail provided that:(1)
The seller is licensed as an audiologist in this state and is authorized to sell hearing aids pursuant to Section 2539.1.(2)
There is no fitting, selection, or adaptation of the instrument and no advice is given with respect to fitting, selection, or adaptation of the instrument and no advice is given with respect to the taking of an ear impression for an earmold by the seller.(3)
The seller has received a statement which is signed by a physician and surgeon, audiologist, or a hearing aid dispenser, licensed by the State of California which verifies that Section 2539.6 has been complied with.(b)
A copy of the statement referred to in paragraph (3) of subdivision (a) shall be retained by the seller for the period provided for in Section 2539.10.
Source:
Section 2539.2, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=2539.2..