Chapter 90 covers optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus, precision instruments and apparatus; parts and accessories thereof. This chapter has a broad scope, ranging from simple magnifying glasses to complex aerospace navigation systems, with the core characteristic of being technology-intensive and used for measurement, detection, control, or analysis. Note the distinction from Chapter 84 machinery and Chapter 85 electrical equipment; this chapter emphasizes the functional attributes of instruments and apparatus. Heading 9032 covers automatic regulating or controlling instruments and apparatus, including thermostats, pressure controllers, flow controllers, liquid level controllers, etc. These devices are used to automatically detect and regulate physical quantities such as temperature, pressure, flow, and liquid level to maintain them at a set value. The key characteristic is the presence of automatic feedback control functionality, rather than simple manual switches or measuring instruments. First 2 digits 90: Chapter 90, instruments and apparatus category. Digits 3-4, 32: Heading 9032, automatic regulating or controlling instruments and apparatus. Digits 5-6, 20: Subheading 903220, specifically referring to pressure controllers (manostats). The complete code 903220 refers to pressure control devices within automatic regulating or controlling instruments. This subheading can be further subdivided, but the six-digit subheading is already specific to pressure controllers, distinguished from temperature controllers (903210), flow controllers (903281), etc. Vehicle-mounted pressure controllers are used to automatically regulate pressure in vehicle systems (such as fuel pressure, turbocharger boost pressure), maintaining it at a set value, with automatic feedback control functionality, conforming to the description of Heading 9032. Its core function is automatic control, rather than mere measurement (classified under 9026) or manual valves (classified under 8481). Therefore, it is classified under 903220, rather than the adjacent 902620 (pressure measuring instruments) or 848180 (valves).
Chapter
Chapter 90 covers optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus, precision instruments and apparatus; parts and accessories thereof. This chapter has a broad scope, ranging from simple magnifying glasses to complex aerospace navigation systems, with the core characteristic of being technology-intensive and used for measurement, detection, control, or analysis. Note the distinction from Chapter 84 machinery and Chapter 85 electrical equipment; this chapter emphasizes the functional attributes of instruments and apparatus.
Heading
Heading 9032 covers automatic regulating or controlling instruments and apparatus, including thermostats, pressure controllers, flow controllers, liquid level controllers, etc. These devices are used to automatically detect and regulate physical quantities such as temperature, pressure, flow, and liquid level to maintain them at a set value. The key characteristic is the presence of automatic feedback control functionality, rather than simple manual switches or measuring instruments.
Digit Breakdown
First 2 digits 90: Chapter 90, instruments and apparatus category. Digits 3-4, 32: Heading 9032, automatic regulating or controlling instruments and apparatus. Digits 5-6, 20: Subheading 903220, specifically referring to pressure controllers (manostats). The complete code 903220 refers to pressure control devices within automatic regulating or controlling instruments. This subheading can be further subdivided, but the six-digit subheading is already specific to pressure controllers, distinguished from temperature controllers (903210), flow controllers (903281), etc.
Classification Basis
Vehicle-mounted pressure controllers are used to automatically regulate pressure in vehicle systems (such as fuel pressure, turbocharger boost pressure), maintaining it at a set value, with automatic feedback control functionality, conforming to the description of Heading 9032. Its core function is automatic control, rather than mere measurement (classified under 9026) or manual valves (classified under 8481). Therefore, it is classified under 903220, rather than the adjacent 902620 (pressure measuring instruments) or 848180 (valves).
📝 Declaration Elements
Product Name: The standard name for declaring the commodity, which should accurately reflect the product's function, such as 'vehicle-mounted pressure controller' or 'automotive turbocharger boost pressure control valve'. Use: Describe the usage scenario of the commodity, such as for automotive engine fuel systems, turbocharger systems, brake systems, etc., specifying the vehicle type and system. Working Principle: Briefly describe the automatic control method, such as electronic feedback control or mechanical pressure regulation, which must reflect the automatic regulating function. Brand: Fill in the product brand; if no brand, write 'no brand'. Model: Fill in the manufacturer's model or part number, used to uniquely identify the commodity. Control Object: Specify the physical quantity being controlled, such as pressure (specific type: fuel pressure, boost pressure, etc.). Automatic Control: Confirm whether it has automatic feedback control functionality; answer 'yes' or 'no'. Product Name: Vehicle-mounted pressure controller; Use: For automotive engine turbocharger system, automatically regulating boost pressure; Working Principle: Electronic type, through pressure sensor feedback signals, ECU controls solenoid valve to regulate pressure; Brand: Bosch; Model: 0261234567; Control Object: Boost pressure; Automatic Control: Yes. Confusing pressure controllers with pressure sensors; the latter only measures without controlling and should be classified under 902620. Ignoring the 'vehicle-mounted' qualifier, leading to confusion with industrial pressure controllers, though classification is the same, it must be clarified in the Use description. Incorrectly describing the working principle as 'mechanical'; if it is actually electronically controlled, this may raise classification doubts.
Product Name
The standard name for declaring the commodity, which should accurately reflect the product's function, such as 'vehicle-mounted pressure controller' or 'automotive turbocharger boost pressure control valve'.
⚠️ Writing only 'pressure controller' without indicating vehicle-mounted, or mistakenly writing it as 'pressure sensor'.
Use
Describe the usage scenario of the commodity, such as for automotive engine fuel systems, turbocharger systems, brake systems, etc., specifying the vehicle type and system.
⚠️ Vaguely writing 'for automobiles' without specifying the particular system, resulting in ambiguous classification.
Working Principle
Briefly describe the automatic control method, such as electronic feedback control or mechanical pressure regulation, which must reflect the automatic regulating function.
⚠️ Mistakenly writing 'measures pressure and displays it' without emphasizing the control function.
Brand
Fill in the product brand; if no brand, write 'no brand'.
⚠️ Confusing brand with model, or omitting the brand.
Model
Fill in the manufacturer's model or part number, used to uniquely identify the commodity.
⚠️ Incomplete model entry or inconsistency with the actual product.
Control Object
Specify the physical quantity being controlled, such as pressure (specific type: fuel pressure, boost pressure, etc.).
⚠️ Failing to specify the pressure type, or mistakenly writing temperature or flow.
Automatic Control
Confirm whether it has automatic feedback control functionality; answer 'yes' or 'no'.
⚠️ Misreporting a manual regulating valve as automatic control.
Example： Product Name: Vehicle-mounted pressure controller; Use: For automotive engine turbocharger system, automatically regulating boost pressure; Working Principle: Electronic type, through pressure sensor feedback signals, ECU controls solenoid valve to regulate pressure; Brand: Bosch; Model: 0261234567; Control Object: Boost pressure; Automatic Control: Yes.
Common Mistakes：
Confusing pressure controllers with pressure sensors; the latter only measures without controlling and should be classified under 902620.
Ignoring the 'vehicle-mounted' qualifier, leading to confusion with industrial pressure controllers, though classification is the same, it must be clarified in the Use description.
Incorrectly describing the working principle as 'mechanical'; if it is actually electronically controlled, this may raise classification doubts.
🎯 Classification Logic
The core criterion for classification is whether the commodity has automatic regulating or controlling functionality and whether the control object is pressure. According to the Explanatory Notes to the Import and Export Tariff, Heading 9032 includes 'automatic regulating or controlling instruments and apparatus', whose function is to maintain the controlled quantity near a set value. Vehicle-mounted pressure controllers automatically regulate pressure through a feedback mechanism, conforming to this description. If it only measures pressure without control functionality, it should be classified under 9026; if it is a manual valve, it should be classified under 8481. 902620 Pressure measuring instruments: 902620 only measures pressure without automatic control functionality; 903220 includes control devices for automatically regulating pressure, with the core difference being the presence of feedback control. 848180 Other valves: 848180 covers manual or non-automatically controlled valves, such as manual regulating valves; 903220 covers automatic control devices, typically including sensors and controllers. 903210 Thermostats: 903210 controls temperature with automatic regulation; 903220 controls pressure; the control objects differ. 903281 Flow controllers: 903281 controls flow; 903220 controls pressure; the functions differ. 903289 Other automatic regulating or controlling instruments: 903289 covers other automatic regulating apparatus not elsewhere specified; 903220 specifically refers to pressure control; if clearly for pressure control, it should be classified under 903220. Does the commodity have automatic feedback control functionality? Is the control object pressure? Is it used for vehicles (vehicle-mounted)? Does it only measure without controlling? Is it manually operated rather than automatic?
Basis
The core criterion for classification is whether the commodity has automatic regulating or controlling functionality and whether the control object is pressure. According to the Explanatory Notes to the Import and Export Tariff, Heading 9032 includes 'automatic regulating or controlling instruments and apparatus', whose function is to maintain the controlled quantity near a set value. Vehicle-mounted pressure controllers automatically regulate pressure through a feedback mechanism, conforming to this description. If it only measures pressure without control functionality, it should be classified under 9026; if it is a manual valve, it should be classified under 8481.
Confused Codes：
902620 - Pressure measuring instruments
902620 only measures pressure without automatic control functionality; 903220 includes control devices for automatically regulating pressure, with the core difference being the presence of feedback control.
848180 - Other valves
848180 covers manual or non-automatically controlled valves, such as manual regulating valves; 903220 covers automatic control devices, typically including sensors and controllers.
903210 - Thermostats
903210 controls temperature with automatic regulation; 903220 controls pressure; the control objects differ.
903281 - Flow controllers
903281 controls flow; 903220 controls pressure; the functions differ.
903289 - Other automatic regulating or controlling instruments
903289 covers other automatic regulating apparatus not elsewhere specified; 903220 specifically refers to pressure control; if clearly for pressure control, it should be classified under 903220.
Self-Check：
✓ Does the commodity have automatic feedback control functionality?
✓ Is the control object pressure?
✓ Is it used for vehicles (vehicle-mounted)?
✓ Does it only measure without controlling?
✓ Is it manually operated rather than automatic?
❓ FAQ
What is the difference in HS codes between vehicle-mounted pressure controllers and pressure sensors? Vehicle-mounted pressure controllers (903220) have the function of automatically regulating pressure, typically including sensors, controllers, and actuators; while pressure sensors (902620) only measure pressure and output signals without participating in control. If the commodity only measures pressure, it should be classified under 902620. How to determine whether a pressure controller qualifies as automatic control? Automatic control means the device can automatically adjust output based on the deviation between the set value and the actual value, such as through electronic feedback or mechanical feedback mechanisms. If manual adjustment is required, it is not automatic control and may be classified under 8481. What are the most common errors when declaring vehicle-mounted pressure controllers? Common errors include: misreporting automatic control as manual; failing to specify the control object as pressure; overly vague Use descriptions that do not reflect vehicle-mounted and specific system information. It is recommended to provide detailed Working Principle and Use descriptions. How to distinguish between 903220 and 903289? 903220 specifically refers to pressure controllers; 903289 covers other automatic regulating or controlling instruments not elsewhere specified. If the commodity is clearly for pressure control, it should be preferentially classified under 903220. If the pressure controller is purely mechanical, can it still be classified under 903220? Yes, as long as it has automatic regulating functionality, whether mechanical or electronic, it is classified under 903220. However, purely manual regulating valves should be classified under 8481. What certifications or documents are required for vehicle-mounted pressure controllers? Typically, product manuals, working principle diagrams, and brand/model information are required. Some countries may require automotive parts certification, but classification does not depend on certification. For cross-border e-commerce sales of vehicle-mounted pressure controllers, how to look up the HS code? You can refer to the Import and Export Tariff and its Explanatory Notes based on the commodity's function, use, and working principle. It is recommended to use the General Administration of Customs classification query system or consult a professional customs broker. What is the export tax rebate rate for 903220? The export tax rebate rate is subject to national policy adjustments. It is recommended to check the latest export tax rebate documents or consult your local tax bureau. This answer does not provide specific tax rates.
Q: What is the difference in HS codes between vehicle-mounted pressure controllers and pressure sensors?
A: Vehicle-mounted pressure controllers (903220) have the function of automatically regulating pressure, typically including sensors, controllers, and actuators; while pressure sensors (902620) only measure pressure and output signals without participating in control. If the commodity only measures pressure, it should be classified under 902620.
Q: How to determine whether a pressure controller qualifies as automatic control?
A: Automatic control means the device can automatically adjust output based on the deviation between the set value and the actual value, such as through electronic feedback or mechanical feedback mechanisms. If manual adjustment is required, it is not automatic control and may be classified under 8481.
Q: What are the most common errors when declaring vehicle-mounted pressure controllers?
A: Common errors include: misreporting automatic control as manual; failing to specify the control object as pressure; overly vague Use descriptions that do not reflect vehicle-mounted and specific system information. It is recommended to provide detailed Working Principle and Use descriptions.
Q: How to distinguish between 903220 and 903289?
A: 903220 specifically refers to pressure controllers; 903289 covers other automatic regulating or controlling instruments not elsewhere specified. If the commodity is clearly for pressure control, it should be preferentially classified under 903220.
Q: If the pressure controller is purely mechanical, can it still be classified under 903220?
A: Yes, as long as it has automatic regulating functionality, whether mechanical or electronic, it is classified under 903220. However, purely manual regulating valves should be classified under 8481.
Q: What certifications or documents are required for vehicle-mounted pressure controllers?
A: Typically, product manuals, working principle diagrams, and brand/model information are required. Some countries may require automotive parts certification, but classification does not depend on certification.
Q: For cross-border e-commerce sales of vehicle-mounted pressure controllers, how to look up the HS code?
A: You can refer to the Import and Export Tariff and its Explanatory Notes based on the commodity's function, use, and working principle. It is recommended to use the General Administration of Customs classification query system or consult a professional customs broker.
Q: What is the export tax rebate rate for 903220?
A: The export tax rebate rate is subject to national policy adjustments. It is recommended to check the latest export tax rebate documents or consult your local tax bureau. This answer does not provide specific tax rates.
⚠️ 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.