Specific rules by tariff classification.
19 C.F.R. § 102.20
in effectEffective: 2024-07-01The following rules are the rules specified in § 102.11(a)(3) and other sections of this part. Where a rule under this section permits a change to a subheading from another subheading of the same heading, the rule will be satisfied only if the change is from a subheading of the same level specified in the rule.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-19.xmlFetched: 7/26/2026