It shall be unlawful for a manufacturer to sell any shipment of fasteners (except fasteners for which the Secretary has waived the requirements of this chapter pursuant to section 5403 of this title) which are manufactured in the United States unless the fasteners are accompanied, at the time of delivery, by a written certificate by the manufacturer certifying that -
(FOOTNOTE 1) So in original. Probably should be "conspicuously".
The Secretary may issue such regulations as may be necessary to ensure compliance with the provisions of this section.