14 CFR §21.502
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
An article (including an article produced under a letter of TSO design approval) manufactured in a foreign country or jurisdiction meets the requirements for acceptance under this subchapter if—
- (a)That country or jurisdiction is subject to the provisions of an agreement with the United States for the acceptance of that article;
- (b)That article is marked in accordance with part 45 of this chapter; and
- (c)An export airworthiness approval has been issued in accordance with the provisions of that agreement for that article for import into the United States.