19 CFR § 159.43 - Duties contingent upon foreign export duties, charges, or restrictions.
U.S. Note 1 to Section X, Harmonized Tariff Schedule of the United States (19 U.S.C. 1202), provides for the imposition under certain conditions of additional duties on merchandise covered thereby. The assessment of these additional duties is dependent upon action by the President, and notice of such action, if taken, will be published in the Customs Bulletin.