19 CFR 190.29: Certification of bill of materials or formula.

At the time of filing a claim under 19 U.S.C. 1313(a) or (b), the claimant must certify the following:

(a) The claimant is in possession of the applicable bill of materials or formula for the exported or destroyed article(s), which will be promptly provided upon request;

(b) The bill of materials or formula identifies the imported and/or substituted merchandise and the exported or destroyed article(s) by their 8-digit HTSUS subheading numbers; and

(c) The bill of materials or formula identifies the manufactured quantities of the imported and/or substituted merchandise and the exported or destroyed article(s).