Two compliance events define the period. First, the most consequential for filings tonight: the June 1 White House proclamation Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper (FR Doc 2026-11314, published June 4) took effect at 12:01 a.m. EDT this morning, June 8, and runs through December 31, 2027. CBP issued ACE filing instructions on June 5 in CSMS #68855869, covering HTSUS headings 9903.82.01 through 9903.82.26. There is no in-transit grace: goods at sea or in port today are subject to the new rates at the moment of consumption entry. Second, USTR on June 2 issued determinations in 60 Section 301 forced labor investigations and proposed additional duties of 10% or 12.5% (FR Doc 2026-11296, published June 5). The duties are not yet in force; the comment record is open, with hard deadlines in the next four weeks.
What Changed This Period
United States — Section 232 (effective today). The proclamation modifies the regime established by April’s Proclamation 11021 in four substantive ways:
- A new Annex I-C for mobile industrial equipment and machinery — forklifts, bulldozers, cranes, non-agricultural tractors, earth-moving machinery and related products previously outside any reduced-rate framework. Standard rate is 25%, with calibrated 15% effective rates for imports from specified trade-deal countries and special treatment for USMCA-qualifying goods from Canada and Mexico. (See the proclamation’s Annex I-C for the full country list and qualifying criteria.)
- Agricultural equipment and residential HVAC reclassified from 25% to 15%. Combines, harvesters, mowers, plows, agricultural tractors and tractor components, plus residential HVAC systems and components, move into the temporarily reduced 15% rate group through December 31, 2027. Systems returning cached 25% rates for these HTS codes after midnight tonight will overstate duty liability by 10 percentage points per entry.
- Two product categories newly added to derivatives at 25%: steel storage racks and aluminum lithographic plates (used in commercial offset printing) face Section 232 duties for the first time. Any system that previously returned zero Section 232 liability for these HTS codes must be updated.
- The U.S.-origin metal threshold for qualifying as “entirely” American aluminum, steel, or copper is lowered from 95% to 85%, expanding the pool of derivative articles eligible for the 10% U.S.-content rate.
The new Annex I-C Chapter 99 codes (9903.82.01 – 9903.82.26) will appear in the TradeFacts US HTS dataset after tonight’s USITC sync; the change log will reflect the additions in tomorrow morning’s diff.
United States — USTR Section 301 forced labor (proposed, not yet in force). USTR determined that all 60 economies investigated under Section 301 (initiated March 12, 2026) have failed to impose or effectively enforce a prohibition on imports produced with forced labor. Proposed duties are tiered:
- 10% rate (14 entities): economies with a forced-labor import prohibition, a partial regime, or a reciprocal-trade commitment. Includes Canada, the European Union, Mexico, the United Kingdom, Ecuador, Indonesia, Pakistan, plus Argentina, Bangladesh, Cambodia, El Salvador, Guatemala, Malaysia, and Taiwan.
- 12.5% rate (46 economies): all other investigated economies. Includes China, India, Japan, South Korea, Vietnam, Brazil, Switzerland and 39 others. Together these duties would apply to over 99% of U.S. import volume.
- Annex A to the FR notice sets out two layers of product exemptions, and the proposal includes a textile mechanism allowing a limited volume of apparel and textile imports from certain economies to enter at a reduced Section 301 rate.
Hard deadlines — June 22, 2026: requests to appear at the public hearing plus summary of testimony due. July 6, 2026: written comments due. July 7, 2026: USTR hearings. Docket numbers USTR-2026-0265 (comments) and USTR-2026-0266 (hearing requests).
United States — companion China track. Published the same day as the forced-labor docket: FR Doc 2026-11291, Request for Comments on the Scope and Operation of a Mechanism To Promote Reciprocal Managed Trade With China. This is a separate notice from the Section 301 action above and signals where the administration intends to take post-IEEPA China policy. Importers with material China exposure should track both dockets in parallel.
United States — AD/CVD activity. Commerce and the ITC published an unusually heavy slate during the period:
- Preliminary affirmative CVD determinations on van-type trailers and subassemblies from Mexico (FR 2026-11348) and from China (FR 2026-11350), both published June 5.
- Amended final AD review results on frozen warmwater shrimp from Thailand (FR 2026-11371, June 8).
- Final AD review results on freight rail couplers and parts from Mexico, confirming sales below normal value in the 2023–2024 review period (FR 2026-11263, June 4).
- ITC scheduled final-phase AD/CVD investigations on chromium trioxide from India and Turkey (FR 2026-11368, June 8).
- Continuation of AD orders on monosodium glutamate from Indonesia and China (FR 2026-11326, June 5) and on prestressed concrete steel wire strand from Brazil, India, Japan, Mexico, Korea, and Thailand (FR 2026-11266, June 4).
- Final AD review results on chlorinated isocyanurates from Spain (FR 2026-11260, June 4) and preliminary results on off-the-road tires from India (FR 2026-10866, June 1).
Aside from the Section 232 changes effective tonight, no other HTS schedule modifications were published in the US tariff database during the period.
Canada. On June 2, Canada’s Minister responsible for Canada-U.S. Trade, Dominic LeBlanc, wrote to USTR Jamieson Greer and Mexican Economy Secretary Marcelo Ebrard formally asking the three parties to renew USMCA for 16 years when the agreement comes up for its mandatory joint review on July 1. LeBlanc, accompanied by Canada’s chief trade negotiator Janice Charette, met Greer in Washington the same day. Canada simultaneously sits in the 10% tier of the USTR forced-labor proposal above — the two tracks are moving in opposite directions and bilateral relief depends on which gains traction first. No Canadian Customs Tariff schedule changes were published this period.
Mexico. Mexico is also in the 10% tier of the Section 301 forced-labor proposal. In addition, Mexican exporters face the new preliminary CVD on van-type trailers (FR 2026-11348) and the freight rail couplers AD finding (FR 2026-11263) noted above. The Section 232 Annex I-C carves out preferential treatment for USMCA-qualifying mobile industrial equipment from Canada and Mexico, which partially offsets exposure on that product set. No Mexico TIGIE schedule changes were published this period.
One Practical Action
For tonight: pull every active entry under the affected Section 232 mobile-equipment, agricultural, and HVAC HTS codes and confirm your rate engine is loading from the post-June 8 schedule, not stale Proclamation 11021 rates. Steel storage rack and aluminum lithographic plate importers in particular need to flag any zero-Section-232 cached values for immediate update. Cross-check against CSMS #68855869 for the ACE filing detail. For the next four weeks: model your forced-labor Section 301 exposure assuming a 10% load on EU, Canada, Mexico, UK, Ecuador, Indonesia, and Pakistan origin lines, and a 12.5% load on everything else from the 46-country Tier 2 set — then decide whether to submit comments by July 6 or request to appear at the July 7 hearing by June 22. Both rates are proposed, not final; the comment record is the formal channel to push back before USTR issues final action. You can pull the current text of any Chapter 99 code or look up the Annex I-C additions after tonight’s sync from the TradeFacts.io /api/hts/{code} endpoint.
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