19 CFR §182.71

This subpart contains the general origin verification and determination provisions applicable to goods claiming preferential tariff treatment under § 182.11(b) or § 182.32. Additional verification procedures apply to automotive goods and are set forth in subpart I of this part. For textile and apparel goods, CBP may choose to conduct a verification pursuant to the verification means and procedures contained in this subpart or may alternatively choose to conduct a verification pursuant to a site visit as described in § 182.83 of this part.