19 CFR 10.203 - Eligibility criteria in general.
An article classifiable under a subheading of the Harmonized Tariff Schedule of the United States for which a rate of duty of “Free” appears in the “Special” subcolumn followed by the symbol “J” or “J*” in parentheses is eligible for duty-free treatment, and will be accorded such treatment, if each of the following requirements is met:
(b)Country of origin criteria. The article complies with the country of origin criteria set forth in § 10.205.
(d)Filing of claim and submission of supporting documentation. The claim for duty-free treatment is filed, and any required documentation in support of the claim is submitted, in accordance with the procedures set forth in § 10.207.