HTS heading 9032 · Chapter 90
HTS 9032: Automatic regulating or controlling instruments and…
HTS heading 9032 covers automatic regulating or controlling instruments and apparatus; parts and accessories thereof. It has 12 tariff lines with a duty rate; the general (MFN) rates are 1.7% (5 lines), Free (4 lines), 1.1% (2 lines) and others.
Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.
Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.
Tariff lines and duty rates
| HTS code | Description | General | Special | Column 2 | Estimate |
|---|---|---|---|---|---|
| 9032.10.00 | Thermostats | 1.7% | Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) | 40% | |
| For air conditioning, refrigeration or heating systems: | |||||
| 9032.10.00.30 | Designed for wall mounting[No.] | Estimate → | |||
| 9032.10.00.60 | Other[No.] | Estimate → | |||
| 9032.10.00.90 | Other[No.] | Estimate → | |||
| 9032.20.00.00 | Manostats[No.] | Free | 35% | Estimate → | |
| Other instruments and apparatus: | |||||
| 9032.81.00 | Hydraulic and pneumatic | Free | 35% | ||
| Industrial process control instruments and apparatus: | |||||
| 9032.81.00.20 | Hydraulic[No.] | Estimate → | |||
| 9032.81.00.60 | Pneumatic[No.] | Estimate → | |||
| 9032.81.00.80 | Other[No.] | Estimate → | |||
| 9032.89 | Other: | ||||
| Automatic voltage and voltage-current regulators: | |||||
| 9032.89.20.00 | Designed for use in a 6, 12 or 24 V system[No.] | 1.1% | Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | Estimate → |
| 9032.89.40.00 | Other[No.] | 1.7% | Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | Estimate → |
| 9032.89.60 | Other | 1.7% | Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% | |
| Control instruments for air conditioning, refrigeration or heating systems: | |||||
| 9032.89.60.15 | Complete systems[No.] | Estimate → | |||
| 9032.89.60.25 | Other[No.] | Estimate → | |||
| Process control instruments and apparatus: | |||||
| 9032.89.60.30 | Complete systems[No.] | Estimate → | |||
| Other: | |||||
| 9032.89.60.40 | Temperature control instruments[No.] | Estimate → | |||
| 9032.89.60.50 | Pressure and draft control instruments[No.] | Estimate → | |||
| 9032.89.60.60 | Flow and liquid level control instruments[No.] | Estimate → | |||
| 9032.89.60.70 | Humidity control instruments[No.] | Estimate → | |||
| 9032.89.60.75 | Other[kg] | Estimate → | |||
| 9032.89.60.85 | Other[kg] | Estimate → | |||
| 9032.90 | Parts and accessories: | ||||
| Of automatic voltage and voltage-current regulators: | |||||
| 9032.90.21.00 | Designed for use in a 6, 12 or 24 V system[kg] | 1.1% | Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | Estimate → |
| 9032.90.41.00 | Other[kg] | 1.7% | Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% | Estimate → |
| 9032.90.61 | Other | 1.7% | Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% | |
| 9032.90.61.20 | Of thermostats[kg] | Estimate → | |||
| 9032.90.61.40 | Of manostats[kg] | Estimate → | |||
| 9032.90.61.60 | Of instruments and apparatus of subheading 9032.81[kg] | Estimate → | |||
| 9032.90.61.80 | Other[kg] | Estimate → | |||
| 9033.00 | Parts and accessories (not specified or included elsewhere in this chapter) for machines, appliances, instruments or apparatus of chapter 90: | ||||
| 9033.00.20.00 | Light-emitting diode (LED) backlights modules, the foregoing which are lighting sources that consist of one or more LEDs and one or more connectors and are mounted on a printed circuit or other similar substrate, and other passive components, whether or not combined with optical components or protective diodes, and used as backlights illumination for liquid crystal displays (LCDs)[No.] | Free | 40% | Estimate → | |
| 9033.00.30.00 | Touch-sensitive data input devices (so-called “touch screens”) without display capabilities, for incorporation into apparatus having a display, which function by detecting the presence and location of a touch within the display area (such sensing may be obtained by means of resistance, electrostatic capacity, acoustic pulse recognition, infrared lights or other touch-sensitive technology)[No.] | Free | 40% | Estimate → | |
| 9033.00.90.00 | Other[kg] | 4.4% | Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 40% | Estimate → |
31 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.
Example: base duty and fees on $10000
For HTS 9032.10.00 at the general rate of 1.7%, shipped by ocean, before any Chapter 99 tariffs:
| Base duty (1.7%) | $170.00 |
| Merchandise Processing Fee (0.3464%, min $34.58) | $34.64 |
| Harbor Maintenance Fee (0.125%) | $12.50 |
| Duty and fees | $217.14 |
Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.
Special program codes in this heading
- A, A*, A+
- Generalized System of Preferences (GSP)
- AU
- U.S.–Australia FTA
- B
- Automotive Products Trade Act
- BH
- U.S.–Bahrain FTA
- C
- Agreement on Trade in Civil Aircraft
- CL
- U.S.–Chile FTA
- CO
- U.S.–Colombia Trade Promotion Agreement
- D
- African Growth and Opportunity Act (AGOA)
- E, E*
- Caribbean Basin Economic Recovery Act
- IL
- U.S.–Israel FTA
- JO
- U.S.–Jordan FTA
- JP
- U.S.–Japan Trade Agreement
- KR
- U.S.–Korea FTA (KORUS)
- MA
- U.S.–Morocco FTA
- OM
- U.S.–Oman FTA
- P, P+
- CAFTA-DR
- PA
- U.S.–Panama Trade Promotion Agreement
- PE
- U.S.–Peru Trade Promotion Agreement
- S, S+
- USMCA (United States–Mexico–Canada Agreement)
- SG
- U.S.–Singapore FTA
A special rate applies only when the goods qualify under that program's rules of origin and the claim is made at entry.
Frequently asked questions
What is the duty rate for HTS 9032?
Heading 9032 has 12 rate lines. The general (MFN) duty rates are 1.7% (5 lines), Free (4 lines), 1.1% (2 lines), 4.4% (1 line). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.
Do Section 301, 232 or 201 tariffs apply to HTS 9032?
It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.
What fees are added to an import under HTS 9032?
Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.