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3811.11.50.00/Aviation Leaded Antiknock Mixture/Japan

Aviation Leaded Antiknock Mixture from Japan

Specialized antiknock preparation with lead compounds for 100LL avgas (low-lead aviation gasoline) to suppress detonation in piston aircraft engines. HTS 3811.11.5000 covers this as 'other' lead-based antiknock for mineral oils used in hydraulic or lubricating purposes akin to gasoline.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Include FAA or ICAO specifications in documentation to justify aviation exemption from lead bans

• Test for exact lead content to match statistical reporting breakpoints

• Avoid misdeclaration as automotive use to prevent seizure under fuel regulations

Aviation Leaded Antiknock Mixture from Japan — Import Duty Rate | HTS 3811.11.50.00