The independent certified public accountant for the financial audit required by §31.204(1) of this title (relating to the Nature of Audits) must be selected by a competitive process. An independent certified public accountant may not perform the financial audit required by §31.204(1) for more than seven consecutive years. An independent certified public accountant responsible for performing the financial audit for seven consecutive years may not perform the financial audit during the two years following the seventh year.