The Department of Commerce has expanded the number of products impacted by Section 232 tariffs on steel and aluminum products, as recently shared by the Auto Care Association.
407 new tariff lines have been added as derivative products, as shared in an announcement published to the Federal Register on Friday. As of 12:01 a.m. ET, Aug. 18, 2025, the affected products are subject to a 50% tariff.
The new tariff lines fall under Harmonized Tariff Schedule of the United States subheadings—predominantly at the 8-digit level, with some at the 10-digit level. Most HTSUS subheadings included in recent requests were added, according to the Bureau of Industry and Security, except for 60 subheadings already addressed under other Section 232 actions or investigations, including those on automobiles, auto parts, trucks, and truck parts.
The announcement does not change existing Section 232 rules, which include current tariff stacking rules, no drawback eligibility, country of melt/pour reporting for steel and smelt/cast reporting for aluminum, and applicable conditions for foreign-trade zones.
This marks the completion of the first round of an inclusion process started in May. The Department of Commerce stated that the process will be conducted three times each year in January, May, and September, with the next to begin Sept. 1.
