U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
After the issuance of a TSO authorization—
(a) Each change to the quality system is subject to review by the FAA; and
(b) The holder of the TSO authorization must immediately notify the FAA, in writing, of any change that may affect the inspection, conformity, or airworthiness of its article.