14 CFR §45.1
This part prescribes the requirements for—
- (a)Marking products and articles manufactured under—
- (1)A type certificate;
- (2)A production approval as defined under part 21 of this chapter; and
- (3)The provisions of an agreement between the United States and another country or jurisdiction for the acceptance of products and articles; and
- (b)Nationality and registration marking of aircraft registered in the United States in accordance with part 47.