Chapter 90 covers optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus, precision instruments and apparatus; parts and accessories thereof. Goods in this chapter are characterized by high technology content and precision manufacturing, and are widely used in industry, medical care, scientific research, and other fields. Goods within the chapter generally need to meet specific functional or precision requirements, and many involve a combination of electronic, optical, or mechanical technologies. Heading 9032 covers automatic regulating or controlling instruments and apparatus, including thermostats, pressure regulators, hygrostats, flow controllers, liquid level controllers, etc., as well as electrical or electronic devices for automatic regulation or control. These devices are generally used in industrial process control, HVAC systems, vehicle control systems, etc., and their core function is to monitor and automatically adjust parameters to maintain a set value. Code 903290 is a six-digit subheading. The first two digits "90" represent Chapter 90 (optical, measuring, medical, and other precision instruments). The 3rd-4th digits "32" represent heading 9032 (automatic regulating or controlling instruments and apparatus). The 5th-6th digits "90" represent subheading 903290, namely "parts and accessories" under heading 9032. Therefore, 903290 specifically refers to parts and accessories of automatic regulating or controlling instruments and apparatus, rather than complete instruments or apparatus. Vehicle controller parts are dedicated parts of automatic regulating or controlling instruments (such as vehicle controllers), and their function is to work with the main unit to achieve automatic control. Since they are not complete instruments and are dedicated to apparatus under heading 9032, they are classified under 903290. If they were complete controllers, they should be classified under the corresponding subheading of 9032; if they were general-purpose parts, they might be classified under other headings.
Chapter
Chapter 90 covers optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus, precision instruments and apparatus; parts and accessories thereof. Goods in this chapter are characterized by high technology content and precision manufacturing, and are widely used in industry, medical care, scientific research, and other fields. Goods within the chapter generally need to meet specific functional or precision requirements, and many involve a combination of electronic, optical, or mechanical technologies.
Heading
Heading 9032 covers automatic regulating or controlling instruments and apparatus, including thermostats, pressure regulators, hygrostats, flow controllers, liquid level controllers, etc., as well as electrical or electronic devices for automatic regulation or control. These devices are generally used in industrial process control, HVAC systems, vehicle control systems, etc., and their core function is to monitor and automatically adjust parameters to maintain a set value.
Digit Breakdown
Code 903290 is a six-digit subheading. The first two digits "90" represent Chapter 90 (optical, measuring, medical, and other precision instruments). The 3rd-4th digits "32" represent heading 9032 (automatic regulating or controlling instruments and apparatus). The 5th-6th digits "90" represent subheading 903290, namely "parts and accessories" under heading 9032. Therefore, 903290 specifically refers to parts and accessories of automatic regulating or controlling instruments and apparatus, rather than complete instruments or apparatus.
Classification Basis
Vehicle controller parts are dedicated parts of automatic regulating or controlling instruments (such as vehicle controllers), and their function is to work with the main unit to achieve automatic control. Since they are not complete instruments and are dedicated to apparatus under heading 9032, they are classified under 903290. If they were complete controllers, they should be classified under the corresponding subheading of 9032; if they were general-purpose parts, they might be classified under other headings.
📝 Declaration Elements
Product name: The specific name of the declared goods, which should accurately reflect the function or use of the part, such as "circuit board for vehicle controller", "housing for vehicle controller", etc. Use: Explain the equipment or system for which the part is dedicated, for example, "used for vehicle automatic regulating controller", "used for automobile engine control system". Material: The main material of the declared part, such as plastic, metal, electronic components, etc., which affects the classification determination. Brand: The brand or trademark of the declared part; if there is no brand, it must be stated as "no brand". Model: The model or specification of the declared part, used to identify the specific product. Working principle: Briefly explain the role of the part in the controller, such as "achieves control through sensor signal processing". Whether it is a dedicated part: State whether the part is dedicated to automatic regulating or controlling instruments under heading 9032. Product name: circuit board for vehicle controller; Use: used for vehicle automatic regulating controller to process sensor signals; Material: printed circuit board (FR-4); Brand: no brand; Model: PCB-12345; Working principle: receives sensor signals and outputs control instructions; Whether it is a dedicated part: yes, dedicated to the controller under heading 9032. Misreporting general-purpose parts as dedicated parts, leading to classification errors. The use description does not reflect the automatic control function and may be classified under other headings. False declaration of material, affecting the classification determination.
Product name
The specific name of the declared goods, which should accurately reflect the function or use of the part, such as "circuit board for vehicle controller", "housing for vehicle controller", etc.
⚠️ Declaring only "controller part" is too general and does not specify the specific type of part.
Use
Explain the equipment or system for which the part is dedicated, for example, "used for vehicle automatic regulating controller", "used for automobile engine control system".
⚠️ The use description is vague, such as "used for automobiles", without clarifying the connection to automatic control apparatus.
Material
The main material of the declared part, such as plastic, metal, electronic components, etc., which affects the classification determination.
⚠️ Incomplete declaration of material, such as "plastic and metal" without indicating the main material.
Brand
The brand or trademark of the declared part; if there is no brand, it must be stated as "no brand".
⚠️ Incorrect brand declaration, such as mistakenly reporting the manufacturer as the brand.
Model
The model or specification of the declared part, used to identify the specific product.
⚠️ The model declaration is incomplete or inconsistent with the actual goods.
Working principle
Briefly explain the role of the part in the controller, such as "achieves control through sensor signal processing".
⚠️ The principle description is too simple to reflect the connection with automatic control.
Whether it is a dedicated part
State whether the part is dedicated to automatic regulating or controlling instruments under heading 9032.
⚠️ Failure to clarify dedication, leading to classification disputes.
Example： Product name: circuit board for vehicle controller; Use: used for vehicle automatic regulating controller to process sensor signals; Material: printed circuit board (FR-4); Brand: no brand; Model: PCB-12345; Working principle: receives sensor signals and outputs control instructions; Whether it is a dedicated part: yes, dedicated to the controller under heading 9032.
Common Mistakes：
Misreporting general-purpose parts as dedicated parts, leading to classification errors.
The use description does not reflect the automatic control function and may be classified under other headings.
False declaration of material, affecting the classification determination.
🎯 Classification Logic
The core basis for classification is the dedication of the part. According to General Interpretative Rule 1 and the notes to the HS, 903290 applies only to parts dedicated to or mainly used with the automatic regulating or controlling instruments and apparatus of heading 9032. If a part is general-purpose or can be used with equipment under other headings, it cannot be classified under this code. At the same time, it is necessary to consider whether the part already has the characteristics of a complete instrument; if so, it should be classified under the subheading for the complete machine. 903289 Other automatic regulating or controlling instruments and apparatus: 903289 is a complete automatic regulating or controlling instrument, while 903290 is its dedicated part. If a complete controller is imported, it should be classified under 903289; if it is a part, it should be classified under 903290. 903290 Parts of automatic regulating or controlling instruments and apparatus: This code is 903290 itself, and the difference from 903289 lies in whether it is a complete instrument. 853710 Electrical control or distribution panels, boards, etc., for a voltage not exceeding 1000 V: 853710 covers electrical control apparatus, but generally complete control panels and boards, rather than dedicated parts of automatic regulating instruments. If the vehicle controller part is an electrical control panel, it must be determined according to its function. 854370 Other electrical equipment and apparatus with individual functions, not specified or included elsewhere: 854370 covers electrical equipment with individual functions. If the vehicle controller part has an individual function, it may be classified under this code, but generally parts do not have individual functions. 870899 Other parts for motor vehicles: 870899 covers general-purpose parts for motor vehicles. If the vehicle controller part is dedicated to a vehicle control system and meets the definition of 9032, it should preferably be classified under 903290; but if it is a general-purpose vehicle part, it should be classified under 870899. Is the part dedicated to automatic regulating or controlling instruments under heading 9032? Does it already have the characteristics of a complete instrument? Is it general-purpose and can it be used with other equipment? Is it a general-purpose vehicle part? Does its working principle involve automatic regulation or control?
Basis
The core basis for classification is the dedication of the part. According to General Interpretative Rule 1 and the notes to the HS, 903290 applies only to parts dedicated to or mainly used with the automatic regulating or controlling instruments and apparatus of heading 9032. If a part is general-purpose or can be used with equipment under other headings, it cannot be classified under this code. At the same time, it is necessary to consider whether the part already has the characteristics of a complete instrument; if so, it should be classified under the subheading for the complete machine.
Confused Codes：
903289 - Other automatic regulating or controlling instruments and apparatus
903289 is a complete automatic regulating or controlling instrument, while 903290 is its dedicated part. If a complete controller is imported, it should be classified under 903289; if it is a part, it should be classified under 903290.
903290 - Parts of automatic regulating or controlling instruments and apparatus
This code is 903290 itself, and the difference from 903289 lies in whether it is a complete instrument.
853710 - Electrical control or distribution panels, boards, etc., for a voltage not exceeding 1000 V
853710 covers electrical control apparatus, but generally complete control panels and boards, rather than dedicated parts of automatic regulating instruments. If the vehicle controller part is an electrical control panel, it must be determined according to its function.
854370 - Other electrical equipment and apparatus with individual functions, not specified or included elsewhere
854370 covers electrical equipment with individual functions. If the vehicle controller part has an individual function, it may be classified under this code, but generally parts do not have individual functions.
870899 - Other parts for motor vehicles
870899 covers general-purpose parts for motor vehicles. If the vehicle controller part is dedicated to a vehicle control system and meets the definition of 9032, it should preferably be classified under 903290; but if it is a general-purpose vehicle part, it should be classified under 870899.
Self-Check：
✓ Is the part dedicated to automatic regulating or controlling instruments under heading 9032?
✓ Does it already have the characteristics of a complete instrument?
✓ Is it general-purpose and can it be used with other equipment?
✓ Is it a general-purpose vehicle part?
✓ Does its working principle involve automatic regulation or control?
❓ FAQ
If vehicle controller parts are classified under 903290, is additional proof required? Proof of the dedication of the part is usually required, such as technical specifications, drawings, contracts, etc., to prove that it is dedicated to automatic regulating or controlling instruments under heading 9032. Customs may require supplementary materials, so it is advisable to prepare them in advance. How can one determine whether a vehicle controller part is a dedicated part or a general-purpose part? Dedicated parts refer to those used only or mainly with instruments under heading 9032, and they usually have specific interfaces, dimensions, or functions. General-purpose parts such as standard screws and general circuit boards can be used with multiple types of equipment and should be classified under other headings. Reference may be made to HS notes and classification decisions. If a vehicle controller part has an individual function, under which code should it be classified? If a part has an individual function, it may constitute electrical equipment under 854370, or be classified as a complete machine. However, parts generally do not have individual functions, and the determination should be made based on the specific function. It is advisable to consult professional classification personnel. When importing vehicle controller parts, how should "working principle" be filled in among the declaration elements? It should briefly explain the role of the part in the controller, such as "receives sensor signals and converts them into control signals", "provides power voltage stabilization", etc. Avoid being overly technical, but it must reflect the connection with automatic control. How should 903290 and 870899 be distinguished? 903290 applies to parts dedicated to automatic regulating or controlling instruments, while 870899 applies to other parts for motor vehicles. If a part is dedicated to a vehicle automatic control system and meets the definition of 9032, it should be classified under 903290; if it is a general-purpose vehicle part, it should be classified under 870899. How can the import tariff rate for vehicle controller parts be checked? Tariff rates may change. It is advisable to check the latest rates through the website of the General Administration of Customs, the Customs Import and Export Tariff of China, or by consulting a customs broker. Usually, information such as the HS code and country of origin needs to be provided. If vehicle controller parts are complete knock-down sets, how should they be classified? If complete knock-down sets already have the characteristics of a complete instrument, they should be classified as a complete machine; if they do not constitute a complete instrument, they should still be classified as parts. The determination should be made according to General Interpretative Rule 2(a).
Q: If vehicle controller parts are classified under 903290, is additional proof required?
A: Proof of the dedication of the part is usually required, such as technical specifications, drawings, contracts, etc., to prove that it is dedicated to automatic regulating or controlling instruments under heading 9032. Customs may require supplementary materials, so it is advisable to prepare them in advance.
Q: How can one determine whether a vehicle controller part is a dedicated part or a general-purpose part?
A: Dedicated parts refer to those used only or mainly with instruments under heading 9032, and they usually have specific interfaces, dimensions, or functions. General-purpose parts such as standard screws and general circuit boards can be used with multiple types of equipment and should be classified under other headings. Reference may be made to HS notes and classification decisions.
Q: If a vehicle controller part has an individual function, under which code should it be classified?
A: If a part has an individual function, it may constitute electrical equipment under 854370, or be classified as a complete machine. However, parts generally do not have individual functions, and the determination should be made based on the specific function. It is advisable to consult professional classification personnel.
Q: When importing vehicle controller parts, how should "working principle" be filled in among the declaration elements?
A: It should briefly explain the role of the part in the controller, such as "receives sensor signals and converts them into control signals", "provides power voltage stabilization", etc. Avoid being overly technical, but it must reflect the connection with automatic control.
Q: How should 903290 and 870899 be distinguished?
A: 903290 applies to parts dedicated to automatic regulating or controlling instruments, while 870899 applies to other parts for motor vehicles. If a part is dedicated to a vehicle automatic control system and meets the definition of 9032, it should be classified under 903290; if it is a general-purpose vehicle part, it should be classified under 870899.
Q: How can the import tariff rate for vehicle controller parts be checked?
A: Tariff rates may change. It is advisable to check the latest rates through the website of the General Administration of Customs, the Customs Import and Export Tariff of China, or by consulting a customs broker. Usually, information such as the HS code and country of origin needs to be provided.
Q: If vehicle controller parts are complete knock-down sets, how should they be classified?
A: If complete knock-down sets already have the characteristics of a complete instrument, they should be classified as a complete machine; if they do not constitute a complete instrument, they should still be classified as parts. The determination should be made according to General Interpretative Rule 2(a).
⚠️ Disclaimer: HS code classification, declaration elements, tariff rates and regulatory conditions on this page are for reference only and do not constitute legal advice on customs classification. Tariff rates and regulations are subject to change; the latest announcements from the General Administration of Customs and on-site determinations shall prevail. Please consult professional customs brokers or customs authorities before import/export.