VOL. I · WASHINGTON TARIFF DECISION ASSISTANT · April 25, 2026
§ TARIFF CHANGE DOCKET

Every US tariff change, as it happens.

§301 revisions, IEEPA declarations, AD/CVD orders, USTR exclusions — parsed from the Federal Register and posted within 24 hours. Each item links back to the source notice.

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APRIL 27, 2026 · MONDAY
FR NOTICE
12:00 AM UTC
2026-08130

Certain Chassis and Subassemblies Thereof From the People's Republic of China: Final Determination of Covered Merchandise Inquiry

Federal Register notice: Certain Chassis and Subassemblies Thereof From the People's Republic of China: Final Determination of Covered Merchandise Inquiry. In response to a covered merchandise referral by U.S. Customs and Border Protection (CBP), the U.S. Department of Commerce (Commerce) determines that certain me

IMPACT
FR NOTICE
12:00 AM UTC
2026-08129

Oil Country Tubular Goods From the People's Republic of China: Final Determination of Covered Merchandise Inquiry

Federal Register notice: Oil Country Tubular Goods From the People's Republic of China: Final Determination of Covered Merchandise Inquiry. The U.S. Department of Commerce (Commerce) determines that seamless oil country tubular goods (OCTG) produced by Boly Pipe Co., Ltd. (Boly Pipe) in Thailand usi

IMPACT
AD/CVD
12:00 AM UTC
2026-08128

Circular Welded Carbon Steel Pipes and Tubes From Thailand: Preliminary Results and Rescission, in Part, of Antidumping Duty Administrative Review; 2024-2025

Federal Register notice: Circular Welded Carbon Steel Pipes and Tubes From Thailand: Preliminary Results and Rescission, in Part, of Antidumping Duty Administrative Review; 2024-2025. The U.S. Department of Commerce (Commerce) preliminarily finds that certain companies subject to this administrative review made sales of subject merchandise at

IMPACT
↑ INCREASE
additional duty
APRIL 24, 2026 · FRIDAY
FR NOTICE
12:00 AM UTC
2026-08043

Certain Chassis and Subassemblies Thereof From the Socialist Republic of Vietnam: Final Affirmative Determination of Sales at Less Than Fair Value

Federal Register notice: Certain Chassis and Subassemblies Thereof From the Socialist Republic of Vietnam: Final Affirmative Determination of Sales at Less Than Fair Value. The U.S. Department of Commerce (Commerce) determines that certain chassis and subassemblies thereof (chassis) from the Socialist Republic of Vietnam (Vietnam)

IMPACT
AD/CVD
12:00 AM UTC
2026-08042

Certain Chassis and Subassemblies Thereof From the Kingdom of Thailand: Final Affirmative Countervailing Duty Determination

Federal Register notice: Certain Chassis and Subassemblies Thereof From the Kingdom of Thailand: Final Affirmative Countervailing Duty Determination. The U.S. Department of Commerce (Commerce) determines that countervailable subsidies are being provided to producers and exporters of certain chassis and subass

IMPACT
↑ INCREASE
additional duty
FR NOTICE
12:00 AM UTC
2026-08041

Certain Chassis and Subassemblies Thereof From Thailand: Final Affirmative Determination of Sales at Less Than Fair Value

Federal Register notice: Certain Chassis and Subassemblies Thereof From Thailand: Final Affirmative Determination of Sales at Less Than Fair Value. The U.S. Department of Commerce (Commerce) determines that certain chassis and subassemblies thereof (chassis) from Thailand are being, or are likely to be, sol

IMPACT
AD/CVD
12:00 AM UTC
2026-08040

Certain Chassis and Sub assemblies There of From Mexico: Final Affirmative Countervailing Duty Determination

Federal Register notice: Certain Chassis and Sub assemblies There of From Mexico: Final Affirmative Countervailing Duty Determination. The U.S. Department of Commerce (Commerce) determines that countervailable subsidies are being provided to producers and exporters of certain chassis and subass

IMPACT
↑ INCREASE
additional duty
FR NOTICE
12:00 AM UTC
2026-08039

Certain Chassis and Subassemblies Thereof From Mexico: Final Affirmative Determination of Sales at Less Than Fair Value

Federal Register notice: Certain Chassis and Subassemblies Thereof From Mexico: Final Affirmative Determination of Sales at Less Than Fair Value. The U.S. Department of Commerce (Commerce) determines that imports of certain chassis and subassemblies thereof (chassis) from Mexico are being, or are likely t

IMPACT
FR NOTICE
12:00 AM UTC
2026-08038

Certain Hardwood Plywood Products from the People's Republic of China: Preliminary Determinations of No Shipments and Rescission, In Part; 2024, 2020-2021

Federal Register notice: Certain Hardwood Plywood Products from the People's Republic of China: Preliminary Determinations of No Shipments and Rescission, In Part; 2024, 2020-2021. The U.S. Department of Commerce (Commerce) preliminarily finds that there were no shipments of certain hardwood plywood products (hardwood plywood) from the Peo

IMPACT
FR NOTICE
12:00 AM UTC
2026-08037

Subsidy Programs Provided by Countries Exporting Softwood Lumber and Softwood Lumber Products to the United States; Request for Comment Pursuant to the Softwood Lumber Act of 2008

Federal Register notice: Subsidy Programs Provided by Countries Exporting Softwood Lumber and Softwood Lumber Products to the United States; Request for Comment Pursuant to the Softwood Lumber Act of 2008. The U.S. Department of Commerce (Commerce) seeks public comment on any subsidies, including stumpage subsidies, provided by certain countries exporting so…

IMPACT
AD/CVD
12:00 AM UTC
2026-08036

Certain Cold-Rolled Steel Flat Products From the Republic of Korea: Preliminary Results and Rescission, in Part, of Countervailing Duty Administrative Review; 2023; Correction

Federal Register notice: Certain Cold-Rolled Steel Flat Products From the Republic of Korea: Preliminary Results and Rescission, in Part, of Countervailing Duty Administrative Review; 2023; Correction. The U.S. Department of Commerce (Commerce) published notice in the Federal Register of March 5, 2026, in which Commerce announced the preliminary results of t…

IMPACT
↑ INCREASE
additional duty
AD/CVD
12:00 AM UTC
2026-08035

Common Alloy Aluminum Sheet From the Republic of Türkiye: Final Results of Countervailing Duty Administrative Review; 2023; Correction

Federal Register notice: Common Alloy Aluminum Sheet From the Republic of Türkiye: Final Results of Countervailing Duty Administrative Review; 2023; Correction. The U.S. Department of Commerce (Commerce) published a notice in the Federal Register on April 9, 2026, in which Commerce announced the final results of the 202

IMPACT
↑ INCREASE
additional duty
AD/CVD
12:00 AM UTC
2026-08034

Common Alloy Aluminum Sheet From India: Final Results of Countervailing Duty Administrative Review; 2023; Correction

Federal Register notice: Common Alloy Aluminum Sheet From India: Final Results of Countervailing Duty Administrative Review; 2023; Correction. The U.S. Department of Commerce (Commerce) published a notice in the Federal Register of March 10, 2026, in which Commerce announced its final results in the 20

IMPACT
↑ INCREASE
additional duty
APRIL 23, 2026 · THURSDAY
FR NOTICE
12:00 AM UTC
2026-07987

Procedures for Submissions by Certain Steel and Aluminum Producers Committing to New U.S. Steel or Aluminum Production To Obtain Tariff Adjustments Under Proclamation 10984

Federal Register notice: Procedures for Submissions by Certain Steel and Aluminum Producers Committing to New U.S. Steel or Aluminum Production To Obtain Tariff Adjustments Under Proclamation 10984. In Presidential Proclamation 10984 of October 17, 2025 (Adjusting Imports of Medium- and Heavy-Duty Vehicles, Medium- and Heavy-Duty Vehicle Parts, and Buses In

IMPACT
AD/CVD
12:00 AM UTC
2026-07979

Certain Activated Carbon From the People's Republic of China: Final Results of Antidumping Duty Administrative Review; 2023-2024

Federal Register notice: Certain Activated Carbon From the People's Republic of China: Final Results of Antidumping Duty Administrative Review; 2023-2024. The U.S. Department of Commerce (Commerce) determines that certain exporters under review sold certain activated carbon (activated carbon) from the People's Rep

IMPACT
↑ INCREASE
additional duty
AD/CVD
12:00 AM UTC
2026-07867

Certain Preserved Mushrooms From the Netherlands: Final Results of Antidumping Duty Administrative Review; 2022-2024

Federal Register notice: Certain Preserved Mushrooms From the Netherlands: Final Results of Antidumping Duty Administrative Review; 2022-2024. The U.S. Department of Commerce (Commerce) determines that Okechamp B.V. (Okechamp) made sales of subject merchandise at less than normal value during the perio

IMPACT
↑ INCREASE
additional duty
AD/CVD
12:00 AM UTC
2026-07866

Wooden Cabinet and Vanities and Components Thereof From the People's Republic of China: Final Results and Recission, in Part, of Antidumping Duty Administrative Review; 2023-2024

Federal Register notice: Wooden Cabinet and Vanities and Components Thereof From the People's Republic of China: Final Results and Recission, in Part, of Antidumping Duty Administrative Review; 2023-2024. The U.S. Department of Commerce (Commerce) determines that The Ancientree Cabinet Co., Ltd. (Ancientree) and KM Cabinetry Co., Ltd. (KM) made sales of wood…

IMPACT
↑ INCREASE
additional duty
APRIL 20, 2026 · MONDAY
AD/CVD
12:00 AM UTC
2026-07660

Disposable Aluminum Containers, Pans, Trays, and Lids From the People's Republic of China: Preliminary Affirmative Determination of Circumvention of the Antidumping Duty and Countervailing Duty Orders

Federal Register notice: Disposable Aluminum Containers, Pans, Trays, and Lids From the People's Republic of China: Preliminary Affirmative Determination of Circumvention of the Antidumping Duty and Countervailing Duty Orders. The U.S. Department of Commerce (Commerce) preliminarily determines that imports of disposable aluminum containers, pans, trays, and …

IMPACT
↑ INCREASE
additional duty
AD/CVD
12:00 AM UTC
2026-07659

Disposable Aluminum Containers, Pans, Trays, and Lids From the People's Republic of China: Preliminary Affirmative Determination of Circumvention of the Antidumping Duty and Countervailing Duty Orders

Federal Register notice: Disposable Aluminum Containers, Pans, Trays, and Lids From the People's Republic of China: Preliminary Affirmative Determination of Circumvention of the Antidumping Duty and Countervailing Duty Orders. The U.S. Department of Commerce (Commerce) preliminarily determines that imports of disposable aluminum containers, pans, trays, and …

IMPACT
↑ INCREASE
additional duty
APRIL 17, 2026 · FRIDAY
AD/CVD
12:00 AM UTC
2026-07503

Phosphate Fertilizers From the Russian Federation: Final Results of Countervailing Duty Administrative Review; 2023

Federal Register notice: Phosphate Fertilizers From the Russian Federation: Final Results of Countervailing Duty Administrative Review; 2023. The U.S. Department of Commerce (Commerce) determines that Joint Stock Company Apatit (JSC Apatit), a producer/exporter of phosphate fertilizers from the Russia

IMPACT
↑ INCREASE
additional duty