9804.00.75

Any article imported to replace a like article of comparable value previously exempted from duty under subheading 9804.00.70, if the article previously exempted shall have been exported, under such supervision as the Secretary may prescribe, within 60 days after its importation because it was found by the importer to be unsatisfactory

Duty rates

General (MFN): Free
Column 2 (non-MFN): Free

“General” applies to imports from most trading partners under normal trade relations. “Special” lists products eligible for reduced or duty-free treatment under programs like GSP, USMCA, CAFTA-DR, or individual free-trade agreements. “Column 2” applies to imports from countries without normal trade relations (currently Cuba and North Korea).

Chapter 98

Special classification provisions (Section XXII — Special classification and temporary provisions)