Chapter 90 covers optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus, and precision instruments and apparatus; parts and accessories thereof. Goods in this chapter generally have high-precision and high-technology characteristics and are used for measurement, detection, analysis, control, and other purposes, making it one of the most technically sensitive chapters in customs classification. Heading 9015 specifically refers to instruments and appliances for measuring, hydrological, oceanographic, meteorological, environmental protection, and other uses not specified or included elsewhere in this chapter. It includes measuring instruments, levels, rangefinders, meteorological observation instruments, etc. Vehicle-mounted measuring instruments, as measuring equipment carried on a mobile platform, fall under this heading if they are not more specifically classified under other headings. Code 901580 is a six-digit subheading. The first 2 digits '90' represent Chapter 90 (optical, measuring, medical, and other precision instruments); digits 3-4 '15' represent heading 9015 (instruments for measuring, hydrological, oceanographic, meteorological, and other uses not specified or included elsewhere); digits 5-6 '80' represent the subheading under this heading for 'other instruments and appliances.' Therefore, 901580 refers to measuring instruments under heading 9015 other than the specifically named subheadings such as 901510 (rangefinders), 901520 (theodolites and tachymeters), 901530 (levels), and 901540 (photogrammetrical instruments). Vehicle-mounted measuring instruments usually integrate multiple measuring functions (such as distance, angle, position, and environmental parameters), do not belong to the single-function specifically named instruments in 901510-901540, and are not more specifically classified under other headings (such as 9027 physical and chemical analysis or 9031 measuring and checking), so they are classified under subheading 901580 'other.'

Product name: The standard name of the declared commodity should accurately reflect the instrument's function and vehicle-mounted use, such as 'vehicle-mounted laser measuring instrument' or 'vehicle-mounted road inspection system.' Use: Explain the instrument's application scenario, such as road surveying and mapping, geological exploration, environmental monitoring, or vehicle performance testing. Working principle: Briefly describe the core measurement technology, such as laser ranging, GPS positioning, inertial navigation, or optical imaging. Brand: Fill in the instrument brand (in Chinese or a foreign language); if there is no brand, fill in 'no brand.' Model: Fill in the specific model to distinguish products of different specifications under the same brand. Vehicle-mounted or not: Clearly state whether it is specially designed or modified for vehicle mounting, such as fixed installation or portable movement. Main measurement parameters: List the measurable physical quantities, such as distance, angle, speed, temperature, and humidity. Customs declaration example: Product name: Vehicle-mounted laser road inspection system Use: Used for highway pavement smoothness and rutting detection Working principle: Combination of laser scanning and inertial measurement unit (IMU) Brand: XX Model: LMS-2020 Vehicle-mounted: Yes, fixed installation on inspection vehicle Main measurement parameters: Distance, angle, three-dimensional coordinates Suggested HS code: 9015800090 Mistakenly classifying a vehicle-mounted measuring instrument under 901510 (rangefinders); if its core function is ranging and it has no other measuring functions, it should be classified under 901510. Failure to indicate the 'vehicle-mounted' feature, resulting in classification under an ordinary measuring instrument subheading and affecting regulatory conditions. Mistakenly classifying a measuring instrument with navigation functions under 8526 (radar and radio navigation equipment); the main function must be distinguished.

The core basis for classification is the instrument's function, use, and whether it is more specifically named. If a vehicle-mounted measuring instrument has only a single ranging function, it should preferably be classified under 901510; if it has the function of a theodolite or level, it is classified under 901520 or 901530; if it is a photogrammetrical instrument, it is classified under 901540. Only when the instrument integrates multiple measuring functions and cannot be classified under the above specific subheadings should it be classified under 901580. In addition, it must be confirmed whether it belongs to more specific headings such as 9027 (physical and chemical analysis) or 9031 (measuring and checking). 901510 Rangefinders: 901510 specifically refers to instruments with a single ranging function, while 901580 covers multifunctional or otherwise unnamed measuring instruments. If a vehicle-mounted instrument is used only for ranging, it should be classified under 901510. 901520 Theodolites and tachymeters: 901520 is used for measuring angles and stadia; if a vehicle-mounted theodolite's main function is angle measurement, it should be classified under this code rather than 901580. 901530 Levels: 901530 specifically refers to leveling instruments; if a vehicle-mounted level is used only for elevation measurement, it should be classified under 901530. 9027 Physical and chemical analysis instruments: 9027 covers instruments for analyzing the composition of gases, liquids, and solids; if a vehicle-mounted instrument is used for environmental composition analysis, it should be classified under 9027 rather than 9015. 9031 Measuring and checking instruments: 9031 is used for instruments for detecting, measuring, and checking; if a vehicle-mounted instrument is mainly used for performance testing or calibration, it may be classified under 9031. Is the instrument specially designed for vehicle mounting? Is its main function to measure physical quantities such as distance, angle, or position? Does it have multiple measuring functions and cannot be classified under a specific subheading of 9015? Does it not belong to more specific headings such as 9027 or 9031? Do the declaration elements fully describe the working principle and use?

What is the difference in HS codes between vehicle-mounted measuring instruments and ordinary measuring instruments? If a vehicle-mounted measuring instrument has the same function as an ordinary measuring instrument, the classification principle is the same, and both are classified under the corresponding subheading of 9015 according to function. 'Vehicle-mounted' itself does not change classification, but it may affect regulatory conditions (such as vehicle modification certification). If the instrument is specially designed for vehicle mounting and has special functions, it still must be classified according to its main function. How can it be determined whether a vehicle-mounted measuring instrument should be classified under 901510 or 901580? If the instrument has only a ranging function, classify it under 901510; if it simultaneously has multiple functions such as ranging, angle measurement, and positioning, and cannot be classified under 901520-901540, classify it under 901580. It is recommended to provide the product manual to clarify the main function. Under which code should vehicle-mounted GPS measuring equipment be classified? If the GPS equipment is mainly used to measure position coordinates and has the characteristics of a measuring instrument, it may be classified under 901580; if it is mainly used for navigation, it is classified under 8526. Judgment should be based on the main function, with measurement accuracy and use being key. How should the 'vehicle-mounted' feature be described when declaring? Indicate 'vehicle-mounted' or 'vehicle-carried' in the 'Use' or 'Product name,' such as 'vehicle-mounted laser measuring system.' At the same time, explain the installation method (fixed/portable) and applicable vehicle type to avoid ambiguity. How can the import tariff rate for 901580 be checked? The tariff rate must be determined according to the country of origin, trade agreements, and the latest customs tariff. It can be checked through the official website of the General Administration of Customs of China, the International Trade Single Window, or by consulting a customs broker. Note that tariff rates may be adjusted annually and are subject to the time of declaration. Are special documents required for exporting vehicle-mounted measuring instruments? Generally, basic documents such as packing lists, invoices, contracts, and customs declarations are required. If high-tech products are involved, an export license or technology export contract registration certificate may be required. Specific requirements are subject to customs and commerce department regulations. How should a vehicle-mounted measuring instrument that has both measuring and communication functions be classified? Classify according to the main function. If the measuring function is the main function, classify under 9015; if the communication function is primary, classify under 8517. Functional descriptions and technical parameters must be provided, subject to customs determination. Where is the boundary between 901580 and 9031? 9015 covers measuring instruments (such as distance, angle, meteorology, etc.), while 9031 covers measuring and checking instruments (such as calibration, inspection, analysis). If a vehicle-mounted instrument is used to measure physical quantities, classify under 9015; if it is used to test product performance or calibrate, classify under 9031.