California Code, Business and Professions Code - BPC § 7426.5

The board may, by regulation, divide the fees payable under this chapter relating to licenses into separate categories based upon processing functions, such as application review, examination administration, or license issuance, provided that the combined fees for those processing functions do not exceed the maximum amount prescribed by the license category.

The board may, by regulation, establish procedures whereby some or all of a fee submitted in connection with an application for licensure would be forfeited by an applicant who has withdrawn his or her application, fails to appear for an examination, or is required to retake an examination.