Product classification
HS code for Automatic regulators: 9032.89
Regulating or controlling instruments and apparatus, automatic, other than hydraulic or pneumatic.
Classification of automatic regulators under HS 9032.89
Automatic regulators are classified under HS code 903289. This code is part of Chapter 90 of the Harmonized System, which covers optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof. Specifically, 903289 is a residual category for "Regulating or controlling instruments and apparatus; automatic, other than hydraulic or pneumatic." This means it encompasses a wide range of automatic control devices that operate using electrical, electronic, or mechanical principles, but explicitly excludes those that are hydraulic or pneumatic in their primary mode of operation. The key characteristic is the ability to automatically maintain a desired output or condition without continuous human intervention.
- Covers
- Electronic temperature controllers (non-thermostat specific)
- Automatic voltage regulators (AVR)
- Programmable Logic Controllers (PLCs) used for regulation
- Automatic light intensity regulators
- Electronic humidity controllers
- Process controllers for industrial automation (non-hydraulic/pneumatic)
- Also under 9032.89
- Siemens S7-1500 PLC
- Allen-Bradley CompactLogix Controller
- Omron E5CC Temperature Controller
- ABB ACS580 Variable Frequency Drive
Codes often confused with 9032.89
Common mistake. Automatic regulators are subject to several common misclassifications, primarily due to the existence of more specific subheadings within Chapter 90 or distinctions in operating principles. For instance, specific types of automatic regulators like thermostats are classified under HS 903210, and manostats (pressure regulators) under HS 903220. A critical distinction is made for hydraulic or pneumatic automatic regulating or controlling instruments and apparatus, which are classified under HS 903281. If an automatic regulator is integrated into a larger control panel or system, it might fall under HS 8537, which covers boards, panels, and other bases for electric control. Careful analysis of the device's specific function, operating principle, and integration is essential for accurate classification.
Top exporters and importers of HS 903289 (the code used for automatic regulators), 2025
In 2025, the largest exporter of HS 903289 (the code used for automatic regulators) in UN Comtrade data was China, with 14% of world exports; the largest importer in UN Comtrade data was China, with 16% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 903289, not only automatic regulators.
Top exporters 2025 · share of world exports
- 1 China $3.2B 14% of world exports
- 2 Japan $3.0B 13% of world exports
- 3 United States $2.5B 11% of world exports
World total: $23.4B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $4.2B 16% of world imports
- 2 United States $2.6B 9.7% of world imports
- 3 Germany $1.7B 6.5% of world imports
World total: $26.7B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for automatic regulators
Brazil splits HS 9032.89 into 15 NCM codes. Pick the one that matches your product:
- 9032.89.11Electronic voltage regulators
- 9032.89.19Other voltage regulators
- 9032.89.21ABS controllers for motor vehicles
- 9032.89.22Vehicle suspension system controllers
- 9032.89.23Vehicle transmission controllers
- 9032.89.24Vehicle ignition controllers
- 9032.89.25Vehicle injection system controllers
- 9032.89.29Other electronic vehicle controllers
- 9032.89.30Digital railway vehicle control equipment
- 9032.89.81Automatic pressure regulators
- 9032.89.82Automatic temperature regulators
- 9032.89.83Automatic humidity regulators
- 9032.89.84Variable-frequency motor speed controllers
- 9032.89.89Other non-electrical quantity regulators
- 9032.89.90Other automatic regulating instruments
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about automatic regulators
What is the HS code for Automatic regulators?
The HS code for Automatic regulators is 903289 (Regulating or controlling instruments and apparatus; automatic, other than hydraulic or pneumatic). The HS code for automatic regulators, other than hydraulic or pneumatic, is 903289.
How do I classify Automatic regulators for customs?
Automatic regulators is classified under HS code 903289 — Regulating or controlling instruments and apparatus; automatic, other than hydraulic or pneumatic. This is a 6-digit subheading level code.
Are hydraulic or pneumatic regulators classified under 903289?
No, hydraulic or pneumatic automatic regulating or controlling instruments and apparatus are specifically classified under HS 903281.
Which countries are the top exporters of automatic regulators (HS 903289)?
In 2025, the top exporters of HS 903289 (the code used for automatic regulators) in UN Comtrade data were China ($3.2B, 14% of world exports), Japan ($3.0B) and the United States ($2.5B). World exports came to about $23.4B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of automatic regulators (HS 903289)?
In 2025, the top importers of HS 903289 (the code used for automatic regulators) in UN Comtrade data were China ($4.2B, 16% of world imports), the United States ($2.6B) and Germany ($1.7B). World imports came to about $26.7B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Automatic regulators the same in all countries?
The base HS code 903289 for Automatic regulators is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for automatic regulators in Brazil?
Brazil splits HS 903289 into 15 NCM codes, so the right one for automatic regulators depends on the product's details: 9032.89.11 (Electronic voltage regulators), 9032.89.19 (Other voltage regulators), 9032.89.21 (ABS controllers for motor vehicles), 9032.89.22 (Vehicle suspension system controllers), 9032.89.23 (Vehicle transmission controllers), 9032.89.24 (Vehicle ignition controllers), and more.