California Code, Business and Professions Code - BPC § 2538.56

(a) They have not committed acts or crimes constituting grounds for denial of licensure under Section 480.

(b) They pay all of the fees that would be required if they were applying for a license for the first time.

(c) They take and pass the examination that would be required if they were applying for a license for the first time, or otherwise establish to the satisfaction of the board that they are qualified to engage in the practice of fitting or selling hearing aids.  The board may, by regulation, provide for the waiver or refund of all or any part of the application fee in those cases in which a license is issued without an examination under this section.