HTS Codes / Chapter 99

9901.00.52

Ethyl tertiary-butyl ether (provided for in subheading 2909.19.18) and any mixture containing ethyl tertiary-butyl ether

Duty rates

General (MFN)

5.99¢/ liter

Special programs

No change (A,E) Free (CA,IL, MX) See U.S. note 3(e) (CO,PE)

Column 2 (non-MFN)

5.99¢/ liter

“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 99

Temporary legislation; temporary modifications (Section XXII — Special classification and temporary provisions)