Chapter 8606 — Customs Tariff Headings

Anhydrous Ammonia Tank Car

A pressurized railway tank car specifically designed for transporting anhydrous ammonia fertilizer. It features excess flow valves and pressure relief devices to safely handle the compressed gas during rail freight.

Asphalt Tank Car

A heated railway tank car designed for transporting asphalt and bitumen, equipped with steam coils or electric heating systems to maintain the product's fluidity during transit. This ensures the viscous petroleum product can be unloaded efficiently.

Biodiesel Tank Car

A railway tank car designed for transporting B100 biodiesel, featuring heated coils and filtration systems to prevent gelling in cold weather. This ensures the biofuel remains fluid and ready for use upon arrival.

Caustic Soda Tank Car

A lined railway tank car designed for transporting 50% sodium hydroxide solution, featuring diaphragm pump unloading capability and pH monitoring ports. This ensures safe and efficient transport of the alkaline solution.

Chemical Tank Car with Lining

A stainless steel railway tank car with rubber or epoxy lining for transporting corrosive chemicals like sulfuric acid or sodium hydroxide. It is engineered to safely handle hazardous liquid freight.

Crude Oil Tank Car

A heavy-duty railway tank car for transporting unrefined petroleum, reinforced for high-density cargo with full-length head shields per AAR standards. This ensures safe transport of liquid hydrocarbons.

Cryogenic Tank Car for LNG

A double-walled vacuum-insulated railway tank car for transporting liquefied natural gas (LNG) at -260°F, compliant with DOT 113 standards. This specialized low-temperature tank car ensures safe LNG rail freight.

DOT-111 Tank Car

The DOT-111 tank car is a standard non-pressurized rail tank car used for transporting hazardous materials like ethanol, crude oil, and chemicals in the North American rail network. It is a common type of railway tank wagon.

Ethanol Tank Car

A single-compartment railway tank car for transporting denatured ethanol, featuring bottom outlet valves and pressure relief devices per DOT regulations. This ensures safe transport of flammable liquids.

Food-Grade Tank Car

A stainless steel railway tank car with sanitary fittings and FDA-approved lining for transporting edible oils, syrups, and food-grade liquids. This ensures clean and safe transport of food products.

Molten Sulfur Tank Car

An insulated railway tank car with a heating jacket for transporting molten sulfur at 290°F, featuring corrosion-resistant lining. This temperature-controlled tank car ensures safe and efficient sulfur transport.

Multi-Compartment Tank Car

A railway tank car with 2-4 separate compartments for transporting different chemicals simultaneously, each with independent valves and safety systems. This allows for mixed liquid freight in a single tank car.

Phosphoric Acid Tank Car

A railway tank car with phenolic resin lining for transporting 54% phosphoric acid, featuring concentration sensors and neutralization ports. This acid-resistant tank car ensures safe transport of the chemical.

Pressure Tank Car for LPG

A pressurized railway tank car designed for transporting liquefied petroleum gas (LPG), featuring reinforced steel construction and safety valves compliant with DOT 105 standards. This ensures safe LPG transport.

Vinyl Chloride Tank Car

A pressurized railway tank car for transporting vinyl chloride monomer (VCM), featuring double-layer insulation and emergency shutoff valves. This hazardous material tank car ensures safe rail service.

Aggregate Self-Unloading Hopper Car

A self-discharging railway freight car designed for transporting sand, gravel, and construction aggregates. It features rapid bottom-dump gates that allow for quick unloading at job sites, making it essential for construction material logistics. This car falls under tariff item 8606.30.00 as a self-discharging van or wagon, excluding those of subheading 8606.10.

Bulk Cement Silo Hopper Car

A self-discharging hopper car with pressure or gravity discharge systems for bulk cement powder, featuring dust-tight seals to prevent material loss. It is used in construction material distribution networks. This car is classified under tariff item 8606.30.00 as a self-discharging non-tank rail car.

Coal Hopper Self-Discharging Rail Car

A railway freight car with self-discharging hoppers optimized for coal transport, using rotary dump or bottom gate mechanisms for unloading. It is designed for efficient bulk coal handling. This car falls under tariff item 8606.30.00 as a self-discharging freight car, excluding those of subheading 8606.10.

Fertilizer Gravity Unload Car

A rail hopper car designed for fertilizer transport with gravity self-discharge capabilities. It is used in agricultural chemical logistics. This car is classified under tariff item 8606.30.00 as a non-tank self-discharging freight car.

Flour Bulk Hopper Car

A self-discharging hopper rail car for flour and milled grains, featuring pneumatic or gravity unload systems. It is used in food processing logistics. This car falls under tariff item 8606.30.00 as a self-discharging non-tank car.

Gondola Rapid Discharge Rail Car

An open-top gondola-style self-discharging car for bulk materials like scrap metal, with side or bottom discharge mechanisms. It is popular in recycling and steel mill supply chains. This car is classified under tariff item 8606.30.00 for self-discharging rail freight cars, excluding 8606.10.

Hopper Bottom Grain Hopper Car

A self-discharging railway freight car designed for transporting bulk grain, featuring sloped hopper bottoms and bottom discharge gates that open to unload by gravity. It is essential for agricultural logistics. This car falls under tariff item 8606.30.00 as a self-discharging freight car, excluding those of subheading 8606.10.

Mineral Ore Hopper Car

A robust self-discharging hopper rail car for iron ore and other minerals, featuring reinforced sides and gravity discharge. It is critical for mining export logistics. This car is classified under tariff item 8606.30.00 as a non-tank self-discharging freight car.

Petroleum Coke Hopper Car

A self-discharging car for petroleum coke (petcoke), designed to withstand high temperatures. It is used for transporting refinery byproducts. This car falls under tariff item 8606.30.00 as a non-tank self-discharging freight car.

Quarry Stone Hopper Car

A heavy-duty self-discharging hopper for crushed stone and quarry products, with reinforced discharge chutes. It is vital for roadbuilding supply chains. This car is classified under tariff item 8606.30.00 as a non-tank self-discharging rail car.

Rotary Dump Coal Car

A rail freight car designed for rotary dumping of coal, rotated 180 degrees for complete self-discharge. It is key for high-volume coal terminals. This car falls under tariff item 8606.30.00 for self-discharging types, excluding 8606.10.

Salt Hopper Self-Discharging Car

A rail car for road salt with self-discharging hoppers and anti-clog gates. It is essential for seasonal winter maintenance. This car is classified under tariff item 8606.30.00 for self-discharging types.

Scrap Metal Side-Discharge Gondola

A gondola rail car with self-discharging side doors for scrap metal recycling. It supports steel mill supply chains. This car is classified under tariff item 8606.30.00 for self-discharging freight cars.

Sugar Beet Self-Dump Rail Car

A specialized self-discharging car for sugar beets with high-volume bottom gates for farm-to-factory unloading. It supports agricultural processing chains. This car falls under tariff item 8606.30.00 for self-discharging freight cars.

Wood Chip Hopper Car

A self-discharging hopper for wood chips in the pulp and paper industry, with gravity unload capabilities. It is a staple in forestry logistics. This car is classified under tariff item 8606.30.00 for self-discharging freight cars.

Aluminum Covered Boxcar

An aluminum covered boxcar is a fully enclosed railway freight car with a rigid roof and sliding side doors, designed to protect weather-sensitive cargo such as grain or packaged foods during transport. Its closed structure ensures the goods are shielded from the elements, qualifying it as a covered and closed railway vehicle under this tariff item.

Auto-Rack Covered Car

An auto-rack covered car is a multi-level railway freight car fully enclosed with end doors and internal racks, specifically designed for transporting automobiles. Its covered and closed configuration protects vehicles from damage and weather, making it a covered and closed railway vehicle under this tariff item.

Composite Material Covered Freight Car

A composite material covered freight car is a lightweight railway car with a body and roof made from fiberglass-reinforced composites, designed for general freight transport. Its fully enclosed structure reduces tare weight while protecting cargo, qualifying it as a covered and closed railway vehicle under this tariff item.

Double-Door Steel Boxcar

A double-door steel boxcar is a fully enclosed railway freight car with plug or sliding double doors on each side and a corrugated roof, designed for efficient loading of palletized goods. Its closed structure ensures cargo protection, making it a covered and closed railway vehicle under this tariff item.

Refrigerated Covered Reefer Car

A refrigerated covered reefer car is an insulated, fully enclosed railway freight car with mechanical refrigeration units, designed to transport perishable goods like produce or meat. The closed and insulated structure maintains temperature control, qualifying it as a covered and closed railway vehicle under this tariff item.

Steel Grain Hopper Covered Car

A steel grain hopper covered car is a closed railway freight car with a sloped interior and roof hatch covers, designed for bulk grain transport while preventing moisture ingress. Its covered and closed structure protects the cargo, making it a covered and closed railway vehicle under this tariff item.

Bettleheim Steel Log Gondola

A steel log gondola railway freight car with stake-side construction, open top, and fixed sides exceeding 60 cm in height. Designed for transporting logs and similar bulk loads on railways, it qualifies as an open railway freight car under tariff item 8606.92.00.

CSX Transportation Aggregate Hopper-Gon

A hybrid hopper-gondola railway freight car with an open top and non-removable sides over 60 cm, designed for transporting quarry products like aggregates. Despite hybrid features, its open high-side design aligns with the tariff item's description.

Evraz North America Ore Gondola

A heavy-duty open gondola railway freight car from Evraz, built for iron ore transport with fixed riveted sides over 60 cm high and abrasion-resistant lining. Its open configuration and high non-removable sides meet the tariff item's requirements.

Greenbrier Bulkhead Gondola

A bulkhead-end open gondola freight car with non-removable sides exceeding 60 cm, featuring end walls for secure transport of lumber and steel products. Its open top and fixed high sides place it under tariff item 8606.92.00.

Gunderson MAX Gon Freight Car

The Gunderson MAX Gon is an open-top railway gondola freight car with non-removable steel sides exceeding 60 cm, designed for bulk commodities like coal, ore, and aggregates. Its open high-sided configuration qualifies it under tariff item 8606.92.00.

Kanawha Eagle Coal Car Gon

An open gondola railway freight car from Kanawha Eagle, designed for coal transport with non-removable high sides exceeding 60 cm. Its open top and fixed side configuration align with tariff item 8606.92.00.

National Steel Car Deep Pocket Gon

A deep-pocket gondola railway freight car from National Steel Car, designed for scrap metal with open fixed high sides exceeding 60 cm for containment. Its open configuration and non-removable sides qualify it under tariff item 8606.92.00.

TrinityRail Coal Gondola Car

TrinityRail's open-top coal gondola with fixed steel sides taller than 60 cm, optimized for unit train coal transport with reinforced structure for high-volume loads. Its open high-sided design meets tariff item 8606.92.00.

Union Pacific Bathtub Gondola

A bathtub-style open gondola freight car used by Union Pacific, featuring non-removable curved sides over 60 cm high for heavy-haul commodities like scrap metal and steel coils. Its open configuration and fixed high sides qualify it under tariff item 8606.92.00.