Chapter 85, Electrical machinery and electronics / Heading 8542
HTS 8542.31.00.20: Electronic integrated circuits, processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits, controllers (including microcontrollers), 16-bit
Schedule text: 16-bit. Classification: Electronic integrated circuits; parts thereof › Electronic integrated circuits › Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits › Controllers (including microcontrollers) › 16-bit
General rate of duty
Free
Column 1, USITC schedule
From China, all in
50%
Priced live by the Gateway engine
Section 301 China
50%
List Semiconductor-50
Forced labor 301
exempt
9903.05.90
How the rate is built
Each line is a separate legal authority. They stack on the $10,000 customs value unless a carve-out says otherwise.
| Program | Rate | Amount |
|---|---|---|
General rate of duty (Column 1) Official rate: Free 8542.31.00.20 | 0% | $0.00 |
Section 301 China (List Semiconductor-50) | 50% | $5,000.00 |
Effective duty rate | 50% | $5,000.00 |
Checked and not applied
- Section 301 forced labor: Exempt: article is already subject to Section 232 duties (9903.05.90, U.S. note 52)
- Section 232: Section 232 semiconductor duty (proclamation of Jan 14, 2026, effective Jan 15, 2026): 25% applies ONLY to advanced computing accelerators meeting the TPP/DRAM-bandwidth thresholds — covered articles enter under HTSUS 8471.50 / 8471.80 / 8473.30 with HTSUS 9903.79.01. Standard logic, memory, and analog chips under 8542 and ordinary computer units/parts are NOT subject. Exemptions: US data centers (9903.79.03), repair/replacement (9903.79.04), R&D (9903.79.05), startups (9903.79.06), consumer electronics (9903.79.07), civil industrial (9903.79.08), public sector (9903.79.09). Not auto-applied: the technical thresholds cannot be determined from the HTS code alone.
Stack priced from China on a $10,000 customs value, ocean entry. Other origins carry different programs; the calculator prices any of them.
Related lines
Statistical lines under the same 8-digit heading share one legal rate; the last two digits report statistics.
- 8542.31.00Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits (rate line, Free)
- 8542.31.00.158-bit
- 8542.31.00.2532-bit
- 8542.31.00.30Other
- 8542.31.00.35Digital signal processors (DSPs)
- 8542.31.00.40Graphics processing units (GPUs)
- 8542.31.00.45Central processing units (CPUs)
- 8542.31.00.50Other
- 8542.31.00.55Complex programmable logic devices (CPLDs)
- 8542.31.00.60Field programmable gate arrays (FPGAs)
- 8542.31.00.65Other
- 8542.31.00.70System on chip (SoCs)
- 8542.31.00.75Other
Questions about this example
- What is HTS code 8542.31.00.20?
- HTS 8542.31.00.20 covers electronic integrated circuits, processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits, controllers (including microcontrollers), 16-bit; the schedule's own line text is "16-bit". Its full classification path in the Harmonized Tariff Schedule of the United States is: Electronic integrated circuits; parts thereof › Electronic integrated circuits › Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits › Controllers (including microcontrollers) › 16-bit. It sits in chapter 85 (Electrical machinery and electronics) under heading 8542.
- What is the general duty rate for HTS 8542.31.00.20?
- The Column 1 general rate of duty is Free. That is the most-favored-nation rate before any Section 301, Section 232, Section 338, Section 201 or antidumping and countervailing action, and before CBP's Merchandise Processing and Harbor Maintenance fees.
- What is the tariff on HTS 8542.31.00.20 from China?
- Priced on $10,000 of goods, the effective duty from China is 50%: 0% general rate + 50% Section 301. Section 301 applies (List Semiconductor-50). Forced-labor duty: Exempt: article is already subject to Section 232 duties (9903.05.90, U.S. note 52).
- Which lines are related to HTS 8542.31.00.20?
- It is a statistical line under the 8-digit rate line 8542.31.00 (Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits), which has 12 other statistical lines. All lines under one 8-digit heading share the same legal duty rate; the tenth digit reports statistics.