Section 406. (a) This chapter shall be administered by the secretary.
(b) It is unlawful for the secretary or any of his officers or employees to use for personal benefit any information which is filed with or obtained by the secretary and which is not made public. No provision of this chapter authorizes the secretary or any of his officers or employees to disclose any such information except among themselves or when necessary or appropriate in a proceeding or investigation under this chapter. No provision of this chapter either creates or derogates from any privilege which exists at common law or otherwise when documentary or other evidence is sought under a subpoena directed to the secretary or any of his officers or employees.
(c) Every person who takes an examination under paragraph (6) of subsection (b) of section 204 shall pay whatever fee the secretary by rule specifies.