Every certificate or associate registration issued by the board shall, while it remains in the possession of the holder, be preserved by the holder but shall, nevertheless, always remain the property of the board. The board shall generally not request return of a certificate or associate registration if it has not been revoked, suspended or voluntarily surrendered in a disciplinary action, but may do so if the board reasonably determines that grounds exist to believe that a person holding a lapsed, retired, or inactive certificate or associate registration has engaged in a practice for which active certification or registration is required.
Iowa Admin. Code r. 193F-9.7