What is HS code 3811.11?

HS code 3811.11 covers: Based on lead compounds. It belongs to chapter 38 (Miscellaneous chemical products) of the Harmonized System.

What is the US import duty for HS code 3811.11?

The US general (normal trade relations) rates under this subheading range: Free. Preference programs and Section 232/301 surcharges can change the effective rate; see the HTS lines for detail.

What is the UK commodity code for 3811.11?

The UK extends 3811.11 to 3 declarable 10-digit commodity codes, starting with 3811110000. The full code goes on the UK customs declaration.

Chapter 38 · Miscellaneous chemical products · Section 6

HS Code 3811.11

Based on lead compounds

Heading 3811: Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils

US duty (general)

Free

US HTS lines

EU CN codes

UK commodity codes

Unit

US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources

United States - HTS lines under 3811.11

Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.

HTS code	Description	General	Special	Other	Unit
3811.11.10	Based on lead compounds > Based on tetraethyl lead or on a mixture of tetraethyl lead and tetramethyl lead	Free	-	30%	kg
3811.11.50	Based on lead compounds > Other	Free	-	25%	kg

Estimate the US duty runs in your browser · no caps

Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.

Customs value (USD) Quantity (kg)

European Union - CN codes under 3811.11

Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.

CN code	Description
3811 11 10	Based on tetraethyl-lead	EU duty (TARIC) →
3811 11 90	Other	EU duty (TARIC) →
3811 11 00	Based on lead compounds	EU duty (TARIC) →

United Kingdom - commodity codes under 3811.11

Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.

Commodity code	Description
3811 11 00 00	Based on lead compounds	UK duty & VAT →
3811 11 10 00	Based on tetraethyl-lead	UK duty & VAT →
3811 11 90 00	Other	UK duty & VAT →

Not a customs ruling. Classification is determined by the importing country's customs authority and depends on the exact product. This page is reference information from official published schedules, not legal advice. For a binding decision, request a ruling (US: CBP CROSS · UK: HMRC ATaR · EU: BTI).

Other subheadings in 3811

3811.00 3811 Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, a 3811.11 Based on lead compounds 3811.19 Other 3811.21 Containing petroleum oils or oils obtained from bituminous minerals 3811.29 Other 3811.90 Other

Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.