View all text of Subpart O [§ 21.601 - § 21.621]
§ 21.620 - Changes in quality system.
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.