Chapter 84 is the major category of mechanical and electrical products in the HS classification, covering nuclear reactors, boilers, machinery, mechanical appliances and their parts. Goods in this chapter generally have the characteristics of power drive, mechanical movement or energy conversion, including power machinery, pumps, fans, refrigeration equipment, handling machinery, automatic data processing equipment, etc. Airport passenger boarding bridges, as passenger boarding equipment with mechanical extension, lifting and docking functions, fall within the scope of material handling or passenger boarding machinery of this chapter. Heading 8479 covers machines and mechanical appliances having individual functions, not specified or included elsewhere in this chapter. Its characteristic is that the machine itself has an individual function but is not specifically named in other headings of Chapter 84. Airport passenger boarding bridges use hydraulic or electric drive to achieve extension, lifting and rotation, completing the transfer of passengers from the terminal to the aircraft cabin door, and are a typical material handling/boarding device with individual functions, and are therefore classified under 8479. The first 2 digits 84: indicates Chapter 84, namely nuclear reactors, boilers, machinery, mechanical appliances and their parts. Digits 3-4, 79: indicates heading 8479, namely machines and mechanical appliances having individual functions, not specified or included elsewhere in this chapter. Digits 5-6, 71: indicates subheading 847971, namely airport passenger boarding bridges. This subheading is a six-digit subheading specially established under 8479 for airport boarding bridges, used to distinguish other machines not elsewhere specified. The overall code 847971 refers to airport passenger boarding bridges, whose structure includes the bridge body, traveling mechanism, lifting mechanism, docking device, etc. Airport passenger boarding bridges have an individual function (transporting passengers for boarding) and are not specifically named in other headings of Chapter 84 (such as 8428 lifting and handling equipment, 8426 cranes, etc.). Although they involve lifting and handling, their main function is boarding and docking, and they are not general-purpose handling machinery, so they are not classified under 8428; nor do they belong to 8471 automatic data processing equipment, etc. Therefore, they are classified under 8479 as "other machines having individual functions," and further classified under 847971 according to the specific naming.

Product Name: Declared product name; should be filled in as "Airport Passenger Boarding Bridge" or "Passenger Boarding Bridge," avoiding non-standard names such as "boarding corridor bridge." Use: Explain the specific use, such as "used for transporting passengers boarding between the airport terminal and the aircraft cabin door." Brand: Fill in the manufacturer or brand name, such as "JBT," "ThyssenKrupp," etc. Model: Fill in the product model, such as "PBB-3000," used to distinguish specifications. Drive Mode: Explain the drive mode, such as "electro-hydraulic drive," "all-electric," etc. Main Components: Briefly describe the main components, such as "bridge body, traveling wheels, lifting columns, docking canopy, control system." Specifications and Dimensions: Fill in key dimensions, such as "length 30 meters, extension range 20-40 meters." Whether It Includes a Control System: Explain whether a PLC or computer control system is included, and the control method. Product Name: Airport Passenger Boarding Bridge; Use: Used for transporting passengers boarding between the airport terminal and the aircraft cabin door; Brand: JBT; Model: PBB-3000; Drive Mode: Electro-hydraulic drive; Main Components: bridge body, traveling wheels, lifting columns, docking canopy, PLC control system; Specifications and Dimensions: length 30 meters, extension range 20-40 meters; Whether It Includes a Control System: Includes PLC control system. Declaring the boarding bridge as separate parts, resulting in classification errors; the complete machine should be classified under 847971. The use description is too general and does not reflect the "passenger boarding" function, and it may be incorrectly classified under 8428. Ignoring the drive mode and control system, affecting customs determination of individual functions.

Core basis for classification: 1. Product function: The airport passenger boarding bridge is specialized equipment used to transport passengers between the airport terminal and the aircraft, and has an individual function. 2. Heading structure: 8479 covers machines having individual functions, not elsewhere specified, while 8428 covers lifting, handling, loading and unloading machinery, but the main function of the boarding bridge is boarding and docking, not general-purpose handling. 3. Subheading naming: 847971 is explicitly for airport passenger boarding bridges, belongs to specific naming, and should be classified there first. 4. Exclusion clause: If the boarding bridge is fixedly installed with the terminal and forms a building, it may be classified as a building structure, but it is usually classified under 8479 as movable equipment. 8428 Other lifting, handling, loading and unloading machinery: 8428 covers general-purpose lifting and handling equipment, such as elevators, conveyors, cranes, etc., while boarding bridges are specialized boarding equipment with the function of docking with aircraft cabin doors, so they are classified under 8479. 8426 Cranes, mobile lifting frames: 8426 mainly involves lifting equipment; although boarding bridges can move, their main function is transporting passengers, not lifting cargo. 8479 Other machines having individual functions: 8479 is a residual heading, but 847971 is a specifically named subheading and should be classified there first. 8805 Aircraft ground equipment: 8805 covers aircraft ground training equipment, deck landing equipment, etc.; boarding bridges are airport infrastructure and are not classified under 8805. 8471 Automatic data processing equipment: Boarding bridges may include a control system, but their main function is mechanical transport and they are not classified under 8471. Is it clearly an airport passenger boarding bridge? Does it have an individual function? Is it not specifically named in other headings? Does it include drive and control systems? Is it declared as a complete machine?

Why is the airport passenger boarding bridge classified under 8479 rather than 8428? 8428 mainly covers general-purpose lifting, handling, loading and unloading machinery, such as elevators, conveyors, cranes, etc. The airport passenger boarding bridge is equipment specially used for passenger boarding, has individual functions such as docking with aircraft cabin doors, extension and rotation, and there is a specifically named subheading 847971 under 8479, so it is classified under 8479 first. How are parts of boarding bridges classified? If special parts of boarding bridges are imported separately, they are generally classified under 8479.71 according to the principle of classifying as the complete machine, but if the parts themselves are general-purpose parts (such as bolts, bearings), they are classified according to the corresponding material or general-purpose parts. It is recommended to provide proof of the parts' use and specificity when declaring. Does the inclusion of a control system in the boarding bridge affect classification? No. The control system is a component of the boarding bridge, and the complete machine is still classified under 847971. However, if the control system is imported separately and has an individual function, it may be classified under 8537 or 8471, depending on the specific function. How can I check the tax rate for airport passenger boarding bridges? Tax rates vary by country, trade agreement and country of origin. It is recommended to check through the customs official website, HS code query platforms, or consult a customs broker, and enter 847971 to query the latest import tariff, value-added tax and agreement rates. Note that tax rates may be adjusted, and the rate at the time of declaration shall prevail. What are the common errors when declaring boarding bridges? Common errors include: declaring the complete machine as separate parts, unclear use description, missing brand and model, failure to indicate drive mode, and incorrect classification under 8428 or 8805. It is recommended to fill in the declaration elements strictly and provide detailed technical information. How should "Use" be filled in among the declaration elements for boarding bridges? The use should be specifically filled in as "used for transporting passengers boarding between the airport terminal and the aircraft cabin door," avoiding only writing "for airport use." This helps customs confirm the product function and avoid misclassification. If the boarding bridge is fixedly installed with the terminal, is it still classified under 8479? If the boarding bridge is movable equipment, even if connected to the terminal, it is still classified under 8479. However, if it forms an inseparable part of a building, it may be classified as a building structure. Usually boarding bridges are movable, so they are classified under 8479. What special regulatory conditions are required for exporting boarding bridges? Exported boarding bridges generally have no special regulatory conditions, but attention should be paid to whether export licenses, dual-use items, etc. are involved. It is recommended to check customs export regulatory conditions and ensure compliance with the standards of the destination country. At the same time, provide complete declaration elements to avoid customs clearance delays.