No person may mark a product or article in accordance with this subpart unless—
That person produced the product or article —
Under part 21, subpart F, G, K, or O of this chapter; or
For export to the United States under the provisions of an agreement between the United States and another country or jurisdiction for the acceptance of products and articles; and
That product or article conforms to its approved design, and is in a condition for safe operation; and, for a TSO article; that TSO article meets the applicable performance standards.