All applications for examination shall be filed with the board on the form provided. When any person, or persons, is designated and authorized to be or act as an agent for the applicant, such authorization shall be in writing, signed by the applicant and the person designated, a certified copy of which shall be filed with the board. All applications shall expire and be cancelled after a period of one year if the applicant fails to appear for examination within such period.
Idaho Code § 54-2613