9903.74.10—Section 232 MHDV USMCA Exclusion
Overlay rate
The duty provided in the applicable subheading
Stacks on top of the base HTSUS rate of the product
Tandom · Duty calculator
See this overlay in a real duty stack
Pick a covered 10-digit code below, plug in country and invoice value, and Tandom will compute the full landed cost with this overlay stacked on the base rate.
Plain-English explanation
HTS 9903.74.10 is a Chapter 99 tariff modification under Section 232 MHDV USMCA Exclusion. When a base 10-digit code falls within this provision's scope, it imposes the duty provided in the applicable subheading on top of the underlying base duty. It applies only to imports from CA, MX. It has been in effect since 2025-11-01 with no expiration on file. It currently covers 532 base HTS codes in Tandom's catalog.
Rate stack at entry
Description
Authoritative scope text from the U.S. Harmonized Tariff Schedule
Articles as provided for in subdivision (k) of U.S. note 38 to this subchapter
How to use this provision
When and how this overlay shows up at entry
Chapter 99 provision 9903.74.10 is a tariff modification — it doesn't classify a product on its own. When a base 10-digit HTS code falls within this provision's scope and a shipment matches the country and date conditions, the broker declares the base code at entry, then references 9903.74.10 on a separate line so its rate stacks on top.
Worked example
How this overlay applies to a real covered code
Imagine an importer files a $10,000.00 shipment of 4009.12.00.20 (brake hoses for the vehicles of subheadings 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29 or headings 8702, 8703, 8704, 8705 or 8711) from a country in scope. The overlay rate of The duty provided in the applicable subheading stacks on top of the base HTSUS rate of 2.5%.
Base duty
$250.00
2.5% × $10,000.00
This overlay
$0.00
0% × $10,000.00
Total duty
$250.00
Plus AD/CVD if applicable
Opens the Tandom calculator with HTS 4009.12.00.20 and $10,000.00 pre-filled — add a country to compute the full landed cost.
Target countries
Applies only to imports from these countries
Affected base HTS codes(532)
Showing the first 50 of 532 covered codes (alphabetical).
4009.12.00.20Brake hoses for the vehicles of subheadings 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29 or headings 8702, 8703, 8704, 8705 or 87112.5%4011.10.50.00Other3.4%4011.20.10.05Light truck4%4011.20.10.15Other4%4011.20.10.25For use on a rim measuring 40.6 cm or more in diameter4%4011.20.10.35Other4%4012.19.20.00Designed for tractors provided for in subheadings 8701.91.10, 8701.92.10, 8701.93.10, 8701.94.10 or 8701.95.10 or for agricultural or horticultural machinery or implements provided for in chapter 84 or in subheading 8716.80.10Free4012.19.40.00Radial4%4012.19.80.00Other3.4%4012.20.60.00Of a kind used on vehicles, including tractors, for the on-highway transport of passengers or goods, or on vehicles of heading 8705Free4013.10.00.10Motor car3.7%4013.10.00.20Truck and bus3.7%4016.99.60.10Mechanical articles for motor vehicles2.5%7007.21.11.10For motor vehicles of chapter 874.9%7007.21.51.00Other4.9%7009.10.00.00Rear-view mirrors for vehicles3.9%7320.10.30.00To be used in motor vehicles having a G.V.W. not exceeding 4 metric tons3.2%7320.10.60.15Leaf springs having individual leaves with a thickness of 1.6 mm or more and leaves therefor3.2%7320.10.60.60Other3.2%7320.10.90.15Leaf springs having individual leaves with a thickness of 1.6 mm or more and leaves therefor3.2%7320.10.90.60Other3.2%7320.20.10.00Suitable for motor-vehicle suspension3.2%8301.20.00.30Non-integral steering wheel immobilizer devices5.7%8301.20.00.60Other5.7%8302.10.30.00Designed for motor vehicles2%8302.30.30.10Pneumatic cylinders for lifting, lowering, dampening or counter-balancing2%8302.30.30.60Other2%8302.30.60.00Other3.5%8407.34.05.30Not exceeding 37.3 kWFree8407.34.05.60Air-cooledFree8407.34.05.90OtherFree8407.34.14.00Used or rebuilt2.5%8407.34.18.00Other2.5%8407.34.25.00OtherFree8407.34.35.30Not exceeding 37.3 kWFree8407.34.35.60Air-cooledFree8407.34.35.90OtherFree8407.34.44.00Used or rebuilt2.5%8407.34.48.00Other2.5%8407.34.55.00OtherFree8408.20.20.00To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 87042.5%8409.10.00.40For use in civil aircraftFree8409.10.00.80OtherFree8409.91.10.40For vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704Free8409.91.10.60For marine propulsion enginesFree8409.91.10.80OtherFree8409.91.30.00Aluminum cylinder heads2.5%8409.91.50.10Connecting rods2.5%8409.91.50.81Steel forgings2.5%8409.91.50.85Other2.5%Related Chapter 99 codes(24)
Other Section 232 MHDV USMCA Exclusion provisions in Tandom's catalog
9903.40.05Radial tires of a kind used on motor cars (other than racing cars), station wagons, sport utility vehicles, vans and on-the-highway light trucks (provided for in subheading 4011.10.10 or 4011.20.10)9903.40.10Other tires of a kind used on motor cars (other than racing cars), station wagons, sport utility vehicles, vans and on-the-highway light trucks (provided for in subheading 4011.10.50 or 4011.20.50)9903.74.01Medium- and heavy-duty vehicles as provided for in subdivision (b) of U.S. note 38 to this subchapter.9903.74.02Buses and other vehicles classified in HTSUS heading 8702 as provided for in subdivision (c) of U.S. note 38 to this subchapter.9903.74.03Medium- and heavy-duty vehicles, as provided for in subdivision (d) of U.S. note 38 to this subchapter.9903.74.05Articles as provided for in subdivision (e) of U.S. note 38 to this subchapter.9903.74.06Articles as provided for in subdivision (f) of U.S. note 38 to this subchapter.9903.74.07Medium- and heavy-duty vehicles, as provided for in subdivision (g) of U.S. note 38 to this subchapter.9903.74.08Medium- and heavy-duty vehicle parts, as provided for in subdivision (i) of U.S. note 38 to this subchapter.9903.74.09Medium- and heavy-duty vehicle parts, as provided for in subdivision (j) of U.S. note 38 to this subchapter.9903.74.11Section 232 MHDV Non-Stacking — articles in Note 38(i) auto parts scope that are NOT parts of medium- or heavy-duty vehicles. 0% additional duty. Proclamation 10984.9903.76.01Softwood timber and lumber products provided for in subdivision (b) of U.S. note 37 of this subchapter9903.76.02Upholstered wooden furniture products provided for in subdivision (d) of U.S. note 37 of this subchapter9903.76.03Completed kitchen cabinets and vanities and parts of kitchen cabinets and vanities provided for in subdivision (f) of U.S. note 37 of this subchapter9903.76.04Articles as provided for in subdivision (g) of U.S. note 37 of this subchapter9903.76.20Wood products of the United Kingdom as provided for in subdivisions (d) and (f) of U.S. note 37 of this subchapter9903.76.21Wood products of Japan as provided for in subdivisions (d) and (f) of U.S. note 37 of this subchapter9903.76.22Wood products of the European Union as provided for in subdivisions (d) and (f) of U.S. note 37 of this subchapter9903.76.23Wood products of South Korea as provided for in subdivisions (d) and (f) of U.S. note 37 of this subchapter9903.78.01Section 232 Copper — 50% ad valorem on copper content of semi-finished copper products (Note 35: headings 7406-7413) and copper derivative products (Note 36(b): headings 7415, 7418, 7419, plus 8544.42/49)9903.78.02Section 232 Copper — non-copper content remainder of articles classifiable under Notes 35/36(b)9903.79.01Semiconductor articles as provided for in subdivisions (a) and (b) of U.S. note 39 to this subchapter.9903.79.02Articles as provided for in subdivision (c) of U.S. note 39 to this subchapter.9903.79.03Semiconductor articles, as defined in subdivision (b) of U.S. note 39 to this subchapter, that are for use in U.S. data centers, as defined in subdivision (d) of U.S. note 39 to this subchapter.Companion + supersession
How this provision interacts with other Chapter 99 codes
Companion code
Files together with 9903.74.08 — both lines appear on the entry summary.
Frequently asked questions
What is HTS 9903.74.10?
HTS 9903.74.10 is a Chapter 99 tariff modification under Section 232 MHDV USMCA Exclusion. It is not a product classification — it's an overlay code that stacks on top of a base 10-digit HTS code at entry. Scope text: Articles as provided for in subdivision (k) of U.S. note 38 to this subchapter
What rate does HTS 9903.74.10 apply?
The provision states: "The duty provided in the applicable subheading" That rate stacks on top of whatever the base HTSUS rate is for the underlying 10-digit code. Use the Tandom calculator to compute the full landed cost for any covered product.
Which countries does HTS 9903.74.10 apply to?
9903.74.10 applies only to imports from: CA, MX.
Is HTS 9903.74.10 currently active?
Yes — 9903.74.10 is currently active (effective 2025-11-01) with no expiration on file.
How do I use HTS 9903.74.10 when filing?
9903.74.10 doesn't classify a product on its own. When a base 10-digit HTS code falls within this provision's scope and a shipment matches the country and date conditions, the broker declares the base code at entry, then references 9903.74.10 on a separate line so its rate stacks on top. It currently covers 532 base HTS codes in Tandom's catalog.
Learn more
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