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Structured register of government actions in the geoeconomic space — export controls, tariffs, sanctions, FDI screening, subsidies, industrial-policy laws — cross-referenced into the country, minerals, and ETF surface. Charter: docs/IPTM_CHARTER.md.
Severity 1-5 is the qualitative impact rating (1=minor, 5=structural). The bilateral-trade-grounded quant scorer is the next IPTM milestone. RBI (Register Breadth Index) is a complementary structural-breadth indicator from scripts/py/iptm/breadth.py; divergence between RBI and severity is itself informative (high-sev / low-RBI = strategic chokepoint; low-sev / high-RBI = broad but shallow). Every action has at least one primary source URL. Verify-or-don't-file. See also themes, timeline, graph, sankey, map, country exposure, sector exposure, material exposure (+ graph), weekly briefs, portfolio scan, escalation monitor, trans-shipment hubs. Internal triage tools (RSS-poller candidate feed, source-feed health) live under /admin/candidates + /admin/sources. Subscribe via Atom feed (accepts ?country=CN, ?material=lithium, ?issuer=BIS, ?type=export_control, ?etf=SOXX, ?company=NVDA, ?minSeverity=4, ?year=2026, ?q=…) or pull /api/iptm/actions.
BIS published a Federal Register notice (Docket No. 240814-0099; XRIN 0694-XC132) implementing the first cycle of the Section 232 steel and aluminum tariff Inclusions Process established under Proclamations 10895 and 10896 (February 2025). The notice designates 407 Harmonized Tariff Schedule codes as steel or aluminum derivative products, subjecting the steel/aluminum content of those products to the 50% Section 232 tariff effective 12:01 a.m. ET on 18 August 2025; the non-metal content of the same products remains subject to reciprocal and other applicable tariffs. A further 60 HTSUS codes considered for inclusion were excluded from this cycle because they are subject to other ongoing Section 232 or trade-statute investigations.
The US Department of Commerce initiated a countervailing-duty (CVD) investigation of certain freight rail couplers and parts thereof from India (case C-533-941) on 18 August 2025, covering the period of investigation 1 April 2024 - 31 March 2025. On 27 February 2026 Commerce issued a preliminary affirmative determination, published in the Federal Register 3 March 2026, finding countervailable subsidy rates of 6.02% for Kharagpur Metal Reforming Industries, 5.47% for Texmaco Rail & Engineering, and 5.90% for all other Indian producers/exporters; Jupiter Wagons and Bhilai Engineering Corporation were assigned a 64.27% adverse-facts-available rate after failing to respond to Commerce's quantity-and-value questionnaire. Commerce aligned the CVD final determination with the companion antidumping final determination. 2024 US imports of the subject product totaled roughly $5.6 million (2.07 million kg).
The US Department of Commerce initiated less-than-fair-value investigations of certain freight rail couplers and parts thereof from the Czech Republic (case A-851-806) and India (case A-533-940) on 12 August 2025, covering the period of investigation 1 July 2024 - 30 June 2025. On 6 May 2026 Commerce issued preliminary affirmative determinations, finding dumping margins of 60.05% for the Czech Republic and 5.32% for India, and imposed provisional antidumping cash-deposit requirements at those rates effective the same date; the final determination was postponed. A parallel preliminary affirmative countervailing-duty determination for India was published 3 March 2026 (case C-533-941). Commerce postponed the original preliminary deadline (initially due 9 March 2026) via a 23 February 2026 notice citing a lapse-in-appropriations tolling of deadlines and an EDIS filing backlog.
President Trump signed Executive Order 14323, "Addressing Threats to the United States by the Government of Brazil," on 30 July 2025 (published in the Federal Register on 5 August 2025 as FR doc 2025-14896). Invoking IEEPA and the National Emergencies Act, the order declared a country- specific national emergency citing "policies, practices, and actions" of the Lula government — including the criminal prosecution of former president Jair Bolsonaro, asserted infringement of the free-expression rights of US persons via DSA-style platform-content rules, and retaliatory measures targeting US digital firms — as constituting an "unusual and extraordinary threat" to US national security, foreign policy, and economy. The EO imposed a 40% additional ad valorem duty on Brazilian-origin goods effective for entries on or after 12:01 a.m. EDT on 6 August 2025; stacked on top of the 10% baseline reciprocal rate from EO 14257/14326, the cumulative rate reached 50% for non- exempt goods. Annex I exempted civil aircraft and parts, orange juice, certain machinery, certain metals, and energy/energy products. The EO was amended on 20 November 2025 (effective for entries on or after 13 November 2025) to exempt 238+ HTSUS codes for agricultural products (beef, tropical produce, nuts, coffee, cocoa, cassava derivatives, etc.) following initial Trump-Lula bilateral negotiations on 6 October 2025. The IEEPA-tariff component was terminated by EO of 20 February 2026 ("Ending Certain Tariff Actions") within hours of the SCOTUS 6-3 ruling in *Learning Resources, Inc. v. Trump* holding that IEEPA does not authorize the imposition of tariffs.
President Trump signed Executive Order 14324, "Suspending Duty-Free De Minimis Treatment for All Countries," on 30 July 2025 (published in the Federal Register on 5 August 2025 as FR doc 2025-14897, 90 FR 37775). The order eliminated the Section 321(a)(2)(C) administrative exemption that had allowed shipments valued at $800 or less to enter the United States duty-free, applying the suspension to all countries of origin rather than the China/Hong Kong-only carve-out imposed earlier in 2025. DHS/CBP published a Notice of Implementation on 2 September 2025 (FR doc 2025-16802) modifying the Harmonized Tariff Schedule so that covered low-value goods must be entered via formal or informal ACE entry types and pay applicable duties; goods shipped through the international postal network were instead made subject to a new flat ad valorem or specific per-item duty rate set by HTSUS annex. The suspension took effect for entries on or after 12:01 a.m. EDT on 29 August 2025. A DHS/CBP rule published 24 June 2026 (FR doc 2026-12670) converted the non-postal suspension from time-limited to indefinite and closed the remaining international-postal-network exemption to formal/ informal entry procedures as well.
President Trump signed Proclamation 10962 on 30 July 2025, imposing a 50% Section 232 tariff on imports of semi-finished copper products (pipes, wires, rods, sheets, tubes, foils) and copper-intensive derivative products (cables, connectors, electrical components, pipe fittings) effective 12:01 a.m. ET on 1 August 2025. The proclamation also authorises the Commerce Secretary to impose a 25% domestic-sales requirement and export controls on high-quality copper scrap, and lays out a phased schedule for refined-copper tariffs (15% from 1 Jan 2027, 30% from 1 Jan 2028) contingent on a Commerce review report due 30 June 2026. Copper input materials (ores, concentrates, cathodes, anodes) and copper scrap itself are exempt from the 50% tariff. The original 90-day "inclusions" process for expanding the derivative list was terminated by a follow-on April 2026 proclamation that consolidated authority with Commerce + USTR.
On 27 July 2025, President Trump and European Commission President Ursula von der Leyen reached political agreement at Turnberry, Scotland, on a Framework Agreement on Reciprocal, Fair and Balanced Trade. The framework was formalised in a Joint Statement published on 21 August 2025 by the White House and DG TRADE. The deal establishes a 15% all-inclusive (MFN + Section 232) US tariff ceiling on the vast majority of EU originating goods — including autos, pharmaceuticals, semiconductors, lumber, and chemicals — replacing the threatened 20-30% reciprocal tariff trajectory under EO 14257 (April 2025). Steel and aluminium are excluded from the 15% ceiling and remain at the 50% Section 232 rate pending negotiation of a quota solution. In return, the EU commits to: (i) eliminate tariffs on all US industrial goods, (ii) preferential market access for a wide range of US agricultural and seafood products, (iii) suspension of its rebalancing countermeasures under Reg 2025/778 (suspension effective 7 August 2025), (iv) expected energy offtake of $750bn (LNG, oil, nuclear) through 2028, (v) at least $40bn in US AI chip purchases, and (vi) facilitation of $600bn in additional EU corporate investment into the US through 2028. Effective from 1 September 2025, the US applies MFN-only treatment (no 15% top-up) to: aircraft and parts, generic pharmaceuticals and ingredients, chemical precursors, cork, and certain unavailable natural resources. The framework is not legally binding but anchors the bilateral architecture; it is the largest-economy ART-programme deal alongside US-UK, US-Japan, US-Korea, US-Taiwan, and US-Indonesia.
On 15 July 2025 USTR Ambassador Jamieson Greer initiated a Section 301 investigation into six categories of Brazilian "acts, policies, and practices" alleged to be unreasonable or discriminatory and to burden US commerce: (1) digital trade and electronic payment services (specifically the Banco Central do Brasil's operation of the Pix instant-payments system, alleged to disadvantage US payment providers); (2) unfair, preferential tariffs (Brazil's preferential tariff treatment for selected partners that excludes US exports); (3) anti-corruption enforcement (alleged interference with US-linked enforcement matters); (4) intellectual property protection (insufficient enforcement against piracy and counterfeiting); (5) ethanol market access (Brazil's reversal of near-zero ethanol tariffs imposed during the 2017-2024 window); and (6) illegal deforestation (the trade-distorting effect of unenforced environmental rules on Brazilian commodity exports). The Federal Register notice (USTR-2025-0043, FR doc 2025-13498) published on 18 July 2025 set written-comment and hearing-request deadlines for 18 August 2025 and a public hearing for 3 September 2025 at the US International Trade Commission. A determination on whether Brazil's practices are actionable, and what remedies (including retaliatory tariffs, withdrawal of trade concessions, or formal WTO action) USTR will pursue, is statutorily due within 12 months of initiation — i.e. by 15 July 2026.
The US Department of Commerce initiated antidumping and countervailing duty investigations on steel concrete reinforcing bar (rebar) from Algeria, Bulgaria, Egypt, and Vietnam following a June 2025 petition by the Rebar Trade Action Coalition. On 19 December 2025, Commerce published its preliminary affirmative less-than-fair-value determination for Algeria, setting a 127.32% dumping margin (Tosyali Iron and Steel Industry — Algeria, applied to all other Algerian exporters) and requiring cash deposits at that rate. Parallel LTFV and countervailing-duty investigations on Bulgaria, Egypt, and Vietnam remained pending at the provisional/preliminary stage as of this determination, with Bulgaria and Egypt preliminary determinations later postponed to March 2026 (Egypt/Vietnam preliminary CVD margins of 29.51% and 1.08% respectively were set earlier in the case). The investigation covers rebar in straight-length or coil form (HTS-classified, excluding plain/smooth rounds), imported for use in reinforced-concrete construction. Algeria's period of investigation was April 2024–March 2025.
BIS published a Federal Register notice (FR Doc 2025-11067, 90 FR 25208) revising Annex I under Section 232 to add further steel derivative products to the tariff list: combined refrigerator-freezers (HTSUS 8418.10.00), clothes dryers (8451.21.00, 8451.29.00), washing machines (8450.11.00, 8450.20.00), dishwashers (8422.11.00), chest and upright freezers (8418.30.00, 8418.40.00), cooking stoves/ranges/ovens (8516.60.40), food waste disposals (8509.80.20), and welded wire. The steel content of these products becomes subject to the Section 232 duty (raised to 50% ad valorem under Presidential Proclamation 10947 of 2025-06-03, except for UK-origin products) effective 12:01 a.m. ET on 2025-06-23; non-steel content continues to face whatever reciprocal or other tariffs otherwise apply.
The US Department of Commerce preliminarily determined that countervailable subsidies are being provided to producers and exporters of silicon metal from Laos, Australia, Norway, and Thailand, publishing four parallel preliminary affirmative CVD determinations on 2025-09-26 following an initiation on 2025-05-21 (petition by Ferroglobe USA, Inc. and Mississippi Silicon LLC). For Laos, Commerce set a preliminary countervailable-subsidy cash-deposit rate of 240.00% ad valorem for both the sole mandatory respondent, Lao Silicon Co., Ltd., and the all-others rate, based entirely on adverse facts available after finding the respondent did not cooperate. Companion CVD investigations against Australia, Norway, and Thailand were found affirmative the same day, each with its own preliminary subsidy-rate cash-deposit schedule. Commerce ordered CBP to suspend liquidation and require cash deposits at the indicated rates on covered entries from the Laos determination onward. Final CVD determinations are aligned with companion antidumping investigations on the same product.
The US Department of Commerce, following affirmative final less-than-fair-value determinations and an affirmative material-injury finding by the US International Trade Commission, issued antidumping duty orders on silicon metal from Angola and Laos, effective 2026-04-16. Commerce set a 68.45% ad valorem weighted-average dumping margin for Angola (both named respondents and the all-others rate) and a 94.44% margin for Laos, both based entirely on adverse facts available after the respondents did not cooperate with the investigation. The orders stem from an April 2025 petition by Ferroglobe USA, Inc. and companion less-than-fair-value investigations initiated 2025-05-21 that also covered Australia and Norway, where preliminary and final LTFV determinations followed on a later schedule.
On 10–11 May 2025 in Geneva, US Treasury Secretary Scott Bessent and USTR Jamieson Greer met with PRC Vice Premier He Lifeng and on 12 May 2025 issued the "Joint Statement on US-China Economic and Trade Meeting in Geneva," producing the first bilateral de-escalation of the post-2 April 2025 reciprocal-tariff stand-off. The agreement was implemented on the US side via Executive Order 14298 of 12 May 2025 ("Modifying Reciprocal Tariff Rates To Reflect Discussions With the People's Republic of China," published in the Federal Register 21 May 2025 as 90 FR 21831 / 2025-09297) and on the Chinese side via State Council Tariff Commission Announcement No. 4 of 2025. Effective 12:01 a.m. EDT on 14 May 2025, both sides suspended for 90 days (through 12 August 2025) the 24 percentage points of additional ad valorem duty layered on top of the prior 10% reciprocal rate, while the 10% reciprocal rate itself was retained. On the US side this reduced the headline reciprocal-tariff burden on PRC-origin goods from a 125% scheduled rate (under EOs 14259 and 14266) to 10%; combined with the still-in-force 20% IEEPA-fentanyl tariff under Executive Order 14195 (separately filed: `2025-02-01-us-trump-fentanyl-tariffs-canada-mexico-china`), the effective additional rate on most Chinese imports came down to ~30%. China made a parallel 24pp suspension on US-origin goods (from a 125% retaliatory rate to 10%) and additionally suspended non-tariff countermeasures imposed since 2 April 2025 (export controls, unreliable-entity designations, MOFCOM probes). The truce is structurally a calibrated freeze of the reciprocal-tariff ladder under the April 2025 regime, not a repeal: the underlying EO 14257 / IEEPA framework remains intact and was scheduled to re-engage at the 24pp escalated rate on 12 August 2025 absent further extension. The Geneva agreement is the precursor to the August 2025 Stockholm extension and the October 2025 Busan Economic and Trade Arrangement (separately filed: `2025-10-30-us-china-busan-economic-trade-arrangement`).
On 8 May 2025, President Trump and UK Prime Minister Starmer announced the General Terms of the US-UK Economic Prosperity Deal (EPD), the first bilateral framework arrangement of the second Trump administration and the template instrument for subsequent US bilateral framework deals (US-Japan, US-Indonesia, US-Argentina, US-Korea, US-EU). The framework was implemented on 23 June 2025 via Executive Order 14309 (Federal Register doc 2025-11473). Key US concessions: a 100,000-vehicle annual TRQ for UK autos at a 10% combined rate (7.5% + 2.5% MFN, vs. 27.5% Section 232 default); aerospace tariff reduction back to MFN rates; authority delegated to Commerce/USTR to establish UK-only TRQs for steel and aluminum (in lieu of the 50% Section 232 global rate). Key UK concessions: 13,000 mt duty-free beef quota (with 20% tariff removal on the existing 1,000 mt WTO quota); 1.4 billion litre duty-free ethanol quota; commitment to negotiate non-tariff barrier reductions and supply-chain security alignment. The 10% IEEPA "reciprocal" baseline tariff on most other UK goods is preserved by the EPD.
Executive Order 14289 of 29 April 2025 provides that certain overlapping US tariffs should not have a cumulative effect. Where an article is subject to the Section 232 automobile and parts tariffs (Proclamation 10908), it is not subject to the northern- or southern-border duties (EO 14193 / 14194) or to the steel and aluminium Section 232 tariffs; border duties in turn take priority over the metals tariffs, while steel and aluminium tariffs may still stack with each other. The order applies retroactively to entries made on or after 4 March 2025.
USTR concluded its Section 301 investigation (initiated 17 April 2024) into China's targeting of the maritime, logistics, and shipbuilding sectors for dominance and on 17 April 2025 issued a Notice of Action imposing tiered port-entry service fees on Chinese-owned, -operated, and Chinese-built vessels arriving at U.S. ports starting 14 October 2025 (USD 50/net ton escalating to USD 80/NT in Apr 2026, USD 110/NT in Apr 2027, and USD 140/NT in Apr 2028; capped at 5 charges per vessel per year). The action also proposed a 100% tariff on China-built or China-component ship-to-shore cranes and additional 20-100% tariffs on China-origin shipping containers, truck chassis, and chassis parts. The entire action was subsequently suspended for one year (10 Nov 2025 through 9 Nov 2026) by USTR Modification Notice (FR 2025-19873) at presidential direction following the 1 Nov 2025 Trump-Xi trade deal.
President Trump signed Executive Order 14257 on 2 April 2025 declaring a national emergency over US trade deficits and imposing a baseline 10% ad-valorem tariff on imports from nearly all trading partners effective 5 April, with higher country-specific "reciprocal" rates effective 9 April. The rate schedule was constructed from a formula tied to bilateral goods-trade deficits and ranged from 10% (UK, Singapore, Brazil, Australia, others) through 20% (EU), 24% (Japan), 25% (Korea), 32% (Taiwan, Indonesia, Switzerland), 34% (China, later raised to 84% then 125% during the April escalation), 46% (Vietnam), 49% (Cambodia). Multiple subsequent EOs paused the country-specific rates for 90 days for non-China destinations on 9 April while keeping the 10% baseline, pending bilateral negotiations.
President Trump signed Proclamation 10908 "Adjusting Imports of Automobiles and Automobile Parts Into the United States" on 26 March 2025, invoking Section 232 of the Trade Expansion Act of 1962 to impose a 25% ad valorem tariff on imports of finished passenger vehicles and light trucks effective 12:01 a.m. EDT on 3 April 2025, with the duty extended to key automobile parts (engines and engine parts, transmissions and powertrain components, electrical components) effective 12:01 a.m. EDT on 3 May 2025. USMCA-origin automobiles receive an interim deduction equal to the value of US-origin content; USMCA-origin parts that satisfy the agreement's rules of origin are temporarily exempt from the parts duty pending a Commerce-administered process. The proclamation is the first Section 232 instrument applied to finished automobiles in US history and the largest-by-trade-volume Section 232 measure of the second Trump administration, covering roughly USD 460 billion of annual auto and auto-parts imports.
President Trump signed two Presidential Proclamations on 11 February 2025 reinstating a universal 25% ad-valorem tariff on all steel-mill products and raising the aluminum tariff from 10% to 25% on all imports into the United States, effective 12 March 2025. The proclamations revoked every bilateral exclusion and quota arrangement negotiated by the Biden administration with the EU, UK, Japan, Korea, Australia, and others under the 2021-2022 "alternative measures" frameworks, returning all trading partners to the baseline Section 232 rate without product-level or country-level carve-outs.
President Trump signed three Executive Orders on 1 February 2025 (EO 14193, 14194, 14195) declaring national emergencies under IEEPA over the cross-border flow of fentanyl + illegal migration, and using that authority to impose new tariffs: 25% on imports from Canada (with a reduced 10% rate on Canadian energy products), 25% on imports from Mexico, and an additional 10% on imports from China (separate from pre-existing Section 301 + Section 232 tariffs). The tariffs took effect 4 February 2025. On 3 February 2025 the administration announced a 30-day pause for both Canada and Mexico following bilateral border-enforcement commitments; the China tariff was not paused. China responded 4 February with retaliatory tariffs of 15% on US LNG/coal/farm equipment and additional measures. The package set the precedent for the broader 2 April 2025 "Liberation Day" reciprocal-tariff regime (filed: 2025-04-02-us-trump-reciprocal-tariff-regime).
The Biden administration announced on 14 May 2024 a package of Section 301 tariff increases on Chinese imports following the four-year statutory review of the original 2018-2019 tariffs. The hikes target sectors central to the US-China industrial-policy contest: BEVs went from 25% to 100%, lithium- ion EV batteries 7.5% → 25% (with non-EV battery cells rising in 2026), battery parts 7.5% → 25%, natural graphite + magnets 0% → 25% (phased to 2026), semiconductors 25% → 50% (phased to 2025), solar cells 25% → 50%, steel + aluminum products in selected categories 0-7.5% → 25%, ship-to-shore cranes 0% → 25%, certain medical products 0-7.5% → 50%. USTR issued the final determination on 13 September 2024 with most items effective 27 September 2024.
On 9 December 2021, the U.S. Department of Commerce / BIS issued an interim final rule (86 FR 70003) removing 31 General Approved Exclusions (GAEs) from the Section 232 tariff exclusions framework — 27 for steel and 4 for aluminum. The removals followed Commerce's review of public comments on the 14 December 2020 interim final rule that first established the GAE pathway and additional analysis of exclusion-request submissions; Commerce concluded these 31 GAEs no longer met the criteria for blanket exclusion. Effective 27 December 2021, importers of the affected HTS-coded products must either file individual exclusion requests or pay the Section 232 duties of 25% (steel) and 10% (aluminum).
BIS published a temporary final rule (FR Doc 2020-22608) establishing a certification procedure under which US importers holding contracts for certain Brazilian steel articles signed before Presidential Proclamation 10064 (28 August 2020) could apply for relief from the absolute quantitative limitation imposed by that proclamation. Eligible parties must certify that the contract was executed before 28 August 2020, specifies delivery before 31 December 2020, and that domestic procurement is infeasible. The relief mechanism lapsed at year-end 2020.
The US Department of Commerce preliminarily determined that producers and exporters of silicon metal from Kazakhstan received countervailable subsidies at a 120.00% economy-wide rate, and instructed US Customs and Border Protection to begin collecting cash deposits from importers at that rate. The countervailing-duty investigation was initiated 2020-07-27 following a June 2020 petition by Globe Specialty Metals, Inc. and Mississippi Silicon LLC, the same domestic petitioners behind the concurrent antidumping cases against Bosnia and Herzegovina, Iceland, and Malaysia. 2019 Kazakh silicon metal imports subject to the case were valued at approximately $14.9 million.
The US Department of Commerce preliminarily determined that silicon metal from Bosnia and Herzegovina and Iceland is being sold in the United States at less than fair value, and instructed US Customs and Border Protection to begin collecting cash deposits from importers. Bosnia and Herzegovina's sole respondent, R-S Silicon d.o.o., and the all-others rate were set at 21.41%; Iceland's sole respondent, PCC Bakki Silicon hf, received 47.54%, with the all-others rate at 37.83%. A concurrent antidumping investigation of silicon metal from Malaysia, initiated on the same 2020-07-27 date, was not part of this preliminary determination and remained pending. The case followed a July 2020 petition by Globe Specialty Metals, Inc. and Mississippi Silicon LLC.
The Trade Act of 1974 (Pub. L. 93-618, 88 Stat. 1978), signed into law by President Ford on 3 January 1975 and codified principally at 19 U.S.C. §§ 2101–2497b, is the foundational US statute authorising the executive branch to respond to foreign unfair trade practices and to negotiate trade agreements. Title III (§§ 2411–2420), universally known as "Section 301," empowers the United States Trade Representative to investigate foreign acts, policies, or practices that violate trade agreements or are unjustifiable, unreasonable, or discriminatory and burden or restrict US commerce, and — upon an affirmative finding — to impose tariffs, import restrictions, denial of trade-agreement benefits, or other retaliatory measures. Section 301 is the legal basis for every major US unfair-trade-practice retaliation action filed in the IPTM register, including the 2018–2024 China tariff Lists 1–4 and their 2024 escalation, the 2025 China maritime/shipbuilding investigation, the 2025 Brazil investigation, and the 2026 structural-excess-capacity investigation against sixteen economies.
The Trade Expansion Act of 1962 (Pub. L. 87-794, 76 Stat. 872), signed into law by President Kennedy on 11 October 1962 and codified at 19 U.S.C. §§ 1801–1991, is the foundational US statute granting the executive branch broad authority to negotiate tariff reductions and, critically via Section 232 (19 U.S.C. § 1862), to adjust imports of any article found by the Secretary of Commerce to threaten to impair national security. Section 232 empowers the President — on receipt of a Commerce Department affirmative national-security finding — to impose tariffs, quantitative restrictions, or other import-adjustment measures without congressional approval or WTO-required safeguard procedures. From 1962 to the Trump Administration's 2018–2026 wave of Section 232 Proclamations, the authority was invoked primarily for petroleum and machine-tool imports; since 2018 it has become the legal vehicle for national-security tariffs on steel, aluminum, automobiles, copper, timber, critical minerals, semiconductors, and pharmaceuticals, with 19+ IPTM-filed implementing instruments citing Pub. L. 87-794 / 19 U.S.C. § 1862 as their statutory parent.
The Tariff Act of 1930 (Pub. L. 71-361, 46 Stat. 590, codified principally at 19 U.S.C. Chapter 4) is the foundational US statute governing customs revenue, tariff classification, and trade-remedy administration, signed by President Hoover on 17 June 1930. The Act's original Smoot-Hawley tariff schedules are widely cited as a contributing factor to the contraction of global trade during the Great Depression, but the statute's enduring significance lies in its creation of (i) the Title VII antidumping (AD) and countervailing duty (CVD) proceedings framework administered jointly by Commerce ITA and the USITC — the parent authority for every US AD/CVD order in force today — and (ii) Section 337 (19 U.S.C. §1337), the USITC unfair-import and IP-exclusion-order regime under which ~50+ active investigations are conducted annually against semiconductor, biotech, electronics, and other technology imports. Title I's customs-valuation and HTSUS tariff- classification framework underpins all US import-revenue collection; Title VII AD/CVD authority was updated by the GATT Tokyo Round Trade Agreements Act of 1979 and the Uruguay Round Agreements Act of 1994 (URAA) to align with WTO Antidumping and Subsidies Agreements.