Tennessee Code Title 68. Health, Safety and Environmental Protection § 68-122-109

(a) Examinations for chief, deputy, or special inspectors must be administered by a National Board of Boiler and Pressure Vessel Inspectors' member jurisdiction; the National Board of Boiler and Pressure Vessel Inspectors during the last day of the In-service Commission (IS) two-week course; an on-demand provider approved by the National Board of Boiler and Pressure Vessel Inspectors; or other testing methods approved by the National Board of Boiler and Pressure Vessel Inspectors. The examinations must meet the requirements of the latest edition of the Rules for Commissioned Inspectors as approved by the National Board of Boiler and Pressure Vessel Inspectors. If an applicant fails to pass an examination, the applicant must follow the reexamination requirements of the latest edition of the Rules for Commissioned Inspectors. The record of an applicant's examination must be accessible to the applicant and the applicant's employer.

(b) A commission may be suspended or revoked after due investigation and recommendation by the board to the commissioner for the incompetence or untrustworthiness of the holder of the commission, or for willful falsification of any matter or statement contained in the applicant's application or in a report of any inspection. A person whose commission has been suspended or revoked, except for untrustworthiness, shall be entitled to apply to the board for reinstatement or, in the case of revocation, for a new examination and commission after ninety (90) days from such revocation. A person whose commission has been suspended or revoked shall be entitled to an appeal as provided in § 68-122-115 and to be present in person and/or represented by counsel on the hearing of the appeal.

(c) If a certificate or commission is lost or destroyed, a new certificate or commission shall be issued in its place without another examination.