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Special Trade Programs Overview
GSP, USMCA, FTAs, and other preferential tariff programs that reduce or eliminate duties.
19 CFR 10General Note 3 HTSUS
Generalized System of Preferences (GSP)
GSP provides duty-free treatment for eligible goods from designated developing countries. To qualify, goods must: (1) be imported directly from the beneficiary country; (2) meet the 35% value-added requirement (at least 35% of the appraised value must consist of materials grown, produced, or manufactured in the beneficiary country, plus direct processing costs); and (3) be classified under an eligible HTS provision. GSP status must be claimed on the entry summary.
USMCA (formerly NAFTA)
The United States-Mexico-Canada Agreement provides preferential duty rates for goods that meet specific rules of origin. Key concepts include: Regional Value Content (RVC) requirements, tariff shift rules, and product-specific rules. A USMCA Certificate of Origin must accompany the entry to claim preferential treatment. The agreement uses a different origin determination than the substantial transformation test used for marking.
Trade Remedies (AD/CVD, Section 301, Section 232)
In addition to normal duties, goods may be subject to: Antidumping (AD) duties on goods sold below fair value; Countervailing (CVD) duties on subsidized goods; Section 301 duties (additional tariffs on goods from specific countries for unfair trade practices); Section 232 duties (tariffs on imports that threaten national security, such as steel and aluminum). These are classified under HTS Chapter 99 and apply in addition to the normal duty rate.
Key Terms
GSP|普惠制
USMCA|美墨加协定
Antidumping Duty|反倾销税
Section 301|301 条款
Section 232|232 条款
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Back to Knowledge BaseUpdated 2026-04-09