HTS & Classification
Affected Products
Tariff Stacking
Section 232 Basics
Compliance & Enforcement
100

Proper HTS classification and this origin-related determination are key to knowing which tariff regime applies.

What is country of origin?

100

These vehicles are subject to a 25% tariff under Section 232 starting April 3, 2025.

What are automobiles?

100

This term refers to the layering of multiple tariffs on a single product.

What is tariff stacking?

100

This section of the Trade Expansion Act of 1962 allows the President to impose tariffs for national security.

What is Section 232?

100

This type of correction is triggered by entry errors and often leads to CBP notices.

What is a PSC (Post Summary Correction)?

200

CBP added this many new HTS codes on August 18, 2025.

What is 428?

200

These parts will be subject to Section 232 tariffs starting May 3, 2025.

What are auto parts?

200

Products subject to auto tariffs are not subject to these three Section 232 tariffs.

What are copper, aluminum, and steel?

200

These two agencies are primarily responsible for investigating and enforcing Section 232 tariffs.

What are the U.S. Department of Commerce and CBP?

200

CBP is actively auditing entries involving this metal.

What is steel?

300

This certificate is not required at entry but may be demanded later by CBP.

What is a certificate of analysis?

300

USMCA-origin vehicles may apply the tariff only to this portion of their content.

What is non-U.S. content?

300

Brokers must confirm this sequence when applying multiple duties.

What is the correct sequence of duty application?

300

This year marked the beginning of Section 232 tariffs on steel and aluminum.

What is 2018?

300

Brokers must separate these two values correctly when dealing with mixed-content products.

What are copper and steel values?

400

This type of entry may exempt Section 232 duties if consumption is duty-free.

What is a Chapter 98 entry?

400

This renewable energy product is listed among future Section 232 targets.

What is a wind turbine?

400

This type of wire with steel content may be subject to both copper and steel tariffs.

What is copper wire?

400

This metal became subject to a 50% tariff starting August 1, 2025

What is copper?

400

CBP confirmed this enforcement area as a current priority.

What is Section 232?

500

This term refers to the country where steel is melted and poured.

What is melt and pour?

500

These flying devices are included in the health and drone category of upcoming tariffs.

What are unmanned aircraft systems (UAS/drones)?

500

CBP assesses each duty layer in this manner.

What is separately?

500

Section 232 tariffs often apply across these two dimensions.

What are countries and commodities?

500

These two forms of documentation are critical for steel and aluminum imports.

What are melt and pour and smelt and cast certificates?