In order to be eligible for an initial examination, an applicant shall have completed and filed his or her application together with the application fee prescribed by this chapter in the office of the bureau in Sacramento, California, and have his or her experience independently verified by the bureau, not later than 30 days prior to the next scheduled examination date. Applicants shall not be scheduled until a thorough investigation has been concluded by the bureau. Applicants whose applications are not completed and filed within the time limits of this section may, at the discretion of the director, be scheduled for the next scheduled examination.