PRIOR RESEARCH Vol. 1 · Issue 0 · The Tariff Week · Apr 17, 2026
The Tariff Week Sample issue · Apr 17, 2026

11.8%

The US effective tariff rate is the highest since 1943. This week: the $175 billion refund window opens Monday, Section 232 quietly moved to full-customs-value duty, and the small-parcel escape hatch is fully closed. What SMB importers do in the next seven days decides whether it’s claimed or surrendered.

3 moves to make this week — before the bell.

T-2 days · Monday 8:00 AM ET
01
T-2 days $175B pool

Enroll ACH refund authorization.

The duty-payment ACH does not carry over. Verify your importer sub-account in ACE (not broker view) and enroll refund ACH. Miss this and CBP holds your refund indefinitely with no interest.

See the play
Everyone · IOR
02
New cost §232 audit

Audit §232 derivative exposure.

Duty base shifted Apr 6 from metal-content to full customs value. A $100 part with $20 metal that paid $10 now pays $25. Pull top-10 SKUs in Ch. 73/76, 8544, 9405, 8509, 8516, 7323.

See the play
FBA · Metals
03
$120–250K Prep

Queue your CAPE Declaration CSV.

Compile 2025 entries with Chapter 99 IEEPA HTS codes that are unliquidated or liquidated within 80 days. File on or after Monday 8 AM ET. First-in, first-paid.

See the play
Apparel · FBA
11.8%
US effective tariff rate as of April 8, 2026 — the highest real burden on imports since 1943.
Yale Budget Lab
$175B
Collected IEEPA duty potentially refundable after the Feb 20 Supreme Court ruling.
Penn Wharton
Apr 20
CBP’s CAPE refund tool launches Monday at 8:00 AM ET. ACE + ACH enrollment gates every payout.
CBP CSMS
2.5×
Section 232 duty increase on covered steel derivatives — despite the headline rate falling from 50% to 25%.
Apr 2 Proclamation
The Call of the Week

If you paid IEEPA tariffs in 2025 and haven’t enrolled ACH for refunds — not just payment — you are first-in-queue and last-paid when CAPE goes live Monday.

CBP has stated refunds will be held indefinitely, with no interest accrual, if ACH refund authorization is not set up correctly. As of April 9, roughly 18% of IEEPA-duty importers still had not enrolled.4510 Three concrete actions before end-of-day Monday: (a) verify the importer sub-account directly in ACE — not the broker view; (b) enroll ACH under the “ACH Refund Authorization” tab (the duty-payment ACH does not transfer); (c) compile a CSV of entries with Chapter 99 IEEPA HTS codes that are unliquidated or liquidated within 80 days. For a $5M importer with ~$1.5M of China-origin COGS in 2025, this is 6–10% of landed cost sitting with the government.

Action before Monday, April 20 · 8:00 AM ET
00. Market update · Week of April 10–17, 2026

The stacking week.

Three distinct tariff regimes hit the same importers at the same time. Below: the macro rate trajectory, the refund opportunity window, and the §232 duty-base trap — the three moves above are what each of them implies for your next five business days.

Effective tariff rate: 11.8%, revised up +80 bps MoM

Yale Budget Lab’s April 8 update moved the pre-substitution effective rate from 11.0% to 11.8%, incorporating the Section 232 metals restructuring (effective April 6) and the Section 232 pharmaceutical proclamation.1 Penn Wharton’s parallel series, updated April 15, tracks the same directional move.3 Post-substitution end-of-year estimates run 8.2% (if Section 122 expires as scheduled in July) or 10.5% (if extended).1

Context: the “highest since 1943” framing remains accurate. For SMB importers with a broad China-origin book, the rate they pay is substantially higher — the 11.8% is a trade-weighted blend that includes low-rate MFN-only imports from Japan, EU, Korea, and USMCA partners.

Chart 01

Effective tariff rate — last 4 weeks

Pre-substitution US effective tariff rate, weekly. The April 2 metals & pharma proclamations lift the rate by ~80 bps in a single week.

12.0% 11.5% 11.0% 10.5% 10.0% Mar 20 Mar 27 Apr 3 Apr 10 Apr 17 APR 2 · §232 + PHARMA 11.0% 11.0% 11.1% 11.8% 11.8% +80 bps in one week
Source: Yale Budget Lab (Apr 8 update); Penn Wharton (Apr 15). Mar 20–Apr 3 interpolated from reported monthly deltas.

IEEPA tariffs struck down; refunds now in motion $175B

The ruling. Learning Resources, Inc. v. Trump (No. 24-1287), consolidated with Trump v. V.O.S. Selections (No. 25-250), decided February 20, 2026. The Court held: “IEEPA does not authorize the President to impose tariffs.” Both the April 2025 “reciprocal” tariffs (10%+ on most countries) and the “fentanyl” IEEPA tariffs (25% Canada/Mexico, 10% China) were struck down.1112

The refund pool. Penn Wharton estimates ~$175B in collected IEEPA revenue is potentially refundable — a model estimate, not a court-awarded sum. The Supreme Court remanded remedies. The US Court of International Trade, in Atmus Filtration v. United States, issued orders March 4 and March 20 directing CBP to liquidate/reliquidate entries without IEEPA duties. On March 27, the CIT amended its order to extend refund eligibility to entries past final liquidation, removing the biggest administrative hurdle.3131415 The government has until May 4, 2026 to appeal.15

The mechanism — CAPE. CBP’s Consolidated Administration and Processing of Entries (CAPE) tool launches Monday, April 20 at 8:00 AM ET. Phase 1 covers ~63% of IEEPA-duty entries: unliquidated, entries liquidated within 80 days, suspended/extended/under-review, and warehouse entries. Explicitly excluded: reconciliation entries, open drawback, open protest, non-ACE, AD/CVD pending — and, critically, entries finally liquidated >80 days ago with no protest filed (CBP hasn’t built the mechanism yet).24516

Chart 02

The IEEPA refund pool, by claim vehicle

Of the $175B estimated pool, Phase 1 CAPE is the only operational vehicle at launch. The past-liquidation pool is covered by the CIT order but CBP has not yet built the mechanism.

TOTAL POOL PHASE 1 CAPE PAST-LIQUIDATION $175B EST. POOL $110B 63% of pool claimable Apr 20 — GAP — non-Phase 1 $65B no vehicle yet Claimable Apr 20 via CAPE Covered by CIT order, not yet in CAPE
Source: Penn Wharton (pool estimate); CBP CSMS #68315804 (CAPE Phase 1 scope); CIT order March 27, 2026.

Section 232 metals restructuring — in force +150 bps effective

Presidential proclamation April 2, effective for entries on or after April 6.6717 The structural change most operators are missing isn’t the headline rate — it’s that duty is now assessed on full customs value of derivative products, not metal content. A $100 consumer good containing $20 of steel that previously paid $10 of §232 now pays $25.

Chart 03

The §232 duty-base trap

Same $100 aluminum-housing consumer good, same $20 metal content, same importer — before and after April 6, 2026.

BEFORE · PRE-APR 6 $100 product · $20 metal CUSTOMS VALUE $20 non-metal · $80 §232 DUTY BASE · metal content only $20 50% × $20 = $10 §232 DUTY APR 6 AFTER · POST-APR 6 Same $100 · same $20 metal CUSTOMS VALUE $100 — full customs value §232 DUTY BASE · full customs value $100 25% × $100 = $25 §232 DUTY · 2.5×
Source: Proclamation of April 2, 2026; CBP CSMS #68253075 (April 3, 2026).

Section 301 China — stable, with January 2026 increases layered in Layered

Original lists intact.192021 Four-year-review increases effective January 1, 2026 (layered on top): medical gloves 100%, enteral syringes 100%, respirators & face masks 50%, disposable textile face masks 50%, permanent magnets 25%, natural graphite 25%, lithium-ion non-EV batteries 25%.1922

Exclusions. USTR extended 178 exclusions through November 10, 2026 on November 26, 2025 following the November 1, 2025 Trump-Xi trade deal. Renewal of the existing set — not new exclusions.2324

De minimis — fully suspended, globally Closed

Section 321 was closed to China/HK on May 2, 2025, suspended globally August 29, 2025, and extended via the February 20, 2026 Executive Order (effective February 24). Effective February 28, 2026, only the ad valorem duty methodology may be used for postal shipments.89 Every commercial shipment now requires formal entry, regardless of country or declared value. The small-parcel loophole is gone.

Federal Register this week — SMB-relevant only

CBP CSMS #68315804 (Apr 10) confirmed CAPE Phase 1 launch;2 CBP CSMS #68340863 (Apr 13) added ACH enrollment reminder;18 Commerce rescinded the Large Diameter Welded Pipe (Canada) AD review;25 multiple AD/CVD review rescissions across steel, mattresses, garlic, tires, pasta;26 USTR Section 301 maritime fees took effect Apr 17 — Chinese-vessel owner/operator fee rises to $80/NT (from $50), escalating to $110/NT in April 2027 and $140/NT in April 2028. Expect carrier surcharges.27

I. Category · Apparel & Textiles

Apparel’s quiet refund claim.

Apparel was one of the most-exposed categories under the IEEPA regime. Importers have an outsized claim on the $175B refund pool relative to their size — and one defensible reclassification move buys ~19 points of MFN on the right outerwear line.

TL;DR · Chapter I · Apparel Refund play
If you’re
A $1M–$30M DTC apparel brand sourcing Vietnam · Bangladesh · Cambodia · India · China.
Do this
File a CAPE Declaration Monday on 2025 IEEPA-code entries, and cost a cotton-blend shell for 6202 MMF lines near the 50% threshold.
Worth
$120K–$250K refund for a $10M brand with 65/35 Vietnam/China split · plus ~$18,800 per $100K of 6202 imports reclassified.
Reader:  ecommerce / DTC apparel founders, $1M–$30M revenue, sourcing Vietnam · Bangladesh · Cambodia · India · China

What changed this week

Nothing category-specific in the April 10–17 Federal Register window. The relevant story is the ongoing one: most apparel HTS sits in the 10% §122 baseline, so apparel importers have outsized exposure — and an outsized claim on the $175B refund pool. A $10M-revenue apparel brand with 65% Vietnam / 35% China sourcing may have paid $120K–$250K in recoverable IEEPA duty over 2025.

What it means — current duty stack

MFN base rates vary by specific 10-digit HTS; ranges shown.282930

HTSProductMFN+ §122+ §301 (CN)VietnamBangladeshChina
6109T-shirts, knit16.5%10%7.5%26.5%26.5%34.0%
6110Sweaters, knit16.5%–32%10%7.5%26.5–42%26.5–42%34–49.5%
6111Infant apparel (knit)~14.9%10%7.5%~24.9%~24.9%~32.4%
6115Socks, hosiery13.5–16%10%7.5%23.5–26%23.5–26%31–33.5%
6202Women’s outerwear (woven)8.9–27.7%10%7.5%18.9–37.7%18.9–37.7%26.4–45.2%
6203Men’s suits/trousers (woven)9.4–27.9%10%7.5%19.4–37.9%19.4–37.9%26.9–45.4%
6204Women’s suits/dresses (woven)8.9–28.6%10%7.5%18.9–38.6%18.9–38.6%26.4–46.1%

Section 232 does not apply to apparel directly. Apparel with metal trim or hardware may be caught by the April 6 derivative expansion if metal content is substantial — technical outerwear with aluminum/steel components should audit.

Cost impact · $10M brand · 65% VN / 35% CN +$400K/yr
Mid-2024 stack
~$765K
~19% blended on $4M landed COGS
Apr 2026 stack
~$1.17M
~29% blended on same $4M landed
Delta
+$400K/yr
~10 pts of landed · ~4 pts GM
Assumes avg apparel MFN 16.5% across 6109/6110/6202/6204; no §122 in 2024; no §301 on Vietnam; +7.5% List 4A on China portion. Hypothetical — stress-test against your own HTS mix.

The play — fiber-content reclassification (6202)

The women’s outerwear heading 6202 is structured by shell fiber content and the duty rate moves materially across subheadings:2831

SubheadingShell fiberMFN base rate
6202.11Wool or fine animal hair41¢/kg + 16.3%
6202.12Cotton8.9%
6202.13Man-made fibers (MMF)27.7%
6202.19Other textile materialsRate varies

The delta between 6202.13 (MMF) and 6202.12 (cotton) is ~18.8 percentage points of MFN alone. If an outerwear construction is currently classified under 6202.13 because the shell is >50% polyester/nylon, shifting to ≥50% cotton blend (or introducing a cotton outer layer) drops the classification to 6202.12 and strips 18.8 points off the MFN. On $100K imported under that HTS, savings are ~$18,800 per cycle.

The break-even math most brokers won’t walk you through.

Fabric cost premium for 50/50 cotton/poly shell vs. 100% poly is typically $0.40–$1.20/yd depending on weight. At ~2 yards per garment and $35 wholesale, the premium on 10,000 units is $8K–$24K. Duty saving on the same run at $100K landed value is $18,800. Break-even sits between 10,000 and 22,000 units; below, savings get absorbed; above, they clear the fabric premium.

This is a defensible classification move, not a reclassification gimmick. CBP Form 177 binding rulings on fiber-content shell classification are well-established — pull a few on CROSS to confirm scope before committing.32

Caveat: we have not verified this play against a specific brand’s product spec. Framework is sound; the fabric-premium and break-even assumptions should be stress-tested against supplier quotes before acting.

The call on apparel: CAPE refunds + the 6202 fiber-content play are both money already on the table. The refund is the bigger single number; the reclassification compounds every future cycle.
II. Category · Consumer electronics & small FBA goods

The §232 derivative trap.

Most operators read §232 as “metals.” The April 6 restructuring quietly pulled wired goods, small-appliance housings, and anything with substantial steel or aluminum content under a 25%-on-full-customs-value duty. If you sell on Amazon with Chinese sourcing, this is the sleeper story of 2026.

TL;DR · Chapter II · FBA Cost trap
If you’re
An Amazon FBA seller or small ecommerce brand, $500K–$10M, dominantly China-sourced.
Do this
Cross-reference top-10 SKUs against the April 2 §232 derivative annexes; file CAPE on 2025 IEEPA entries; score FSFE feasibility on trading-company-sourced SKUs.
Worth
$120K–$150K IEEPA refund for a $3M FBA book · $17,500+/SKU annual on qualifying FSFE lines · plus avoiding the $10-vs-$25 §232 trap per unit on covered derivatives.
Reader:  Amazon FBA sellers and small ecommerce brands, $500K–$10M revenue, dominantly China-sourced with Vietnam · Mexico · Thailand alternatives

What changed this week

The Section 232 derivative expansion (April 6) is the sleeper story. Annex I-B of the April 2 proclamation covers, among other items: household articles, cutlery, door hardware, bearings, various machinery, insulated electrical conductors, certain automotive parts, certain vehicles and trailers.733 For small-goods sellers, the operationally relevant items are insulated electrical conductors (HTS 8544), many small-appliance housings, and anything with substantial steel/aluminum content.

Current duty stack — China-origin

HTSProductMFN§301§122China total
8471Computers, peripherals0%25% (List 1)10%35%
8517Phones, networking0%25% (List 1)10%35%
8544Wire, insulated conductors2.6–5.3%25% (List 3)10%37.6–40.3% + §232
8504Power supplies, chargers0–1.5%25%10%35–36.5%
9405Lighting2.6–6%7.5% (List 4A)10%20.1–23.5% + §232
8509Small kitchen appliances2.8–4.2%25%10%37.8–39.2%
9503Toys0%7.5% (List 4A)10%17.5%
3924Plastic household goods3.4%25%10%38.4%
8541Semiconductors0%50% (2024 review)10%60%

For Vietnam origin, subtract the §301 column (no direct §301, though CBP circumvention enforcement on China-to-Vietnam transshipment is active). Mexico: USMCA may zero the MFN but §122 still applies; §232 derivative exposure is origin-agnostic.

The §232 derivative trap — the most-missed change

Pre-April 6, a power strip containing $3 of aluminum heat-sink paid §232 only on the $3. Post-April 6, that same power strip — if classified as a covered derivative — pays 25% on the full customs value of the power strip, not the aluminum content. For a $40 landed power strip, that’s $10 of new duty, not $0.75. This hits harder on products where the metal is structural rather than trim: aluminum-housing LED fixtures, steel-body small appliances, wired goods with copper/aluminum conductor.

Audit action: pull your 10-digit HTS codes for 8544, 9405, 8509, 8516, 7323.

Cross-reference against Annex I-A and I-B of the April 2 proclamation. A line that was paying single-digit-effective §232 in March may now be paying 25% on full customs value.

De minimis — dead for your business model

Section 321 is fully suspended globally. Every commercial small-parcel shipment requires formal entry, regardless of value or origin.89 Any inventory model built on China-origin <$800 parcels flowing direct-to-consumer via §321 is no longer viable. Formal entry means: full MFN + §301 + §122 + §232 + any AD/CVD.

Cost impact · $3M FBA book · 90% CN +$150K/yr
2024 baseline
~$390K
~26% of $1.5M landed
Apr 2026 run-rate
~$540K
~36% of same $1.5M landed
IEEPA recoverable
$120–150K
via CAPE — ~10× a broker's fee
Assumes avg MFN ~4% across electronics/small-goods mix; blended §301 ~22% across List 1/3/4A coverage. IEEPA-recoverable = 10% China-fentanyl IEEPA layer, active Feb 2025 through Feb 20, 2026.

The play — First Sale for Export (FSFE)

FSFE is a customs valuation method that lets the importer declare duty on the price paid by the middleman to the factory, not the price paid by the US importer to the middleman. For FBA operators sourcing through Hong Kong trading companies, Alibaba reseller aggregators, or multi-tier agents, the gap between factory price and invoiced price is typically 15–35%. Applying FSFE on a high-MFN-rate SKU (e.g., HTS 6402 footwear at 20%, or §301-hit electronics) drops the duty base by that same 15–35%.

The bar is real: bona fide documentation of the earlier sale, clear title transfer, and arm's-length pricing. Most FBA operators sourcing direct-from-factory don't qualify. But operators using trading companies often do, and most don't realize it — brokers rarely volunteer FSFE because the documentation burden falls on them.

Minimum viable: ≥20% combined MFN+§301, ≥$50K annual landed, trading-company markup.

On a $200K-landed SKU at 35% combined duty and 25% trading markup, FSFE saves ~$17,500 in annual duty, against ~$3K–$8K of documentation effort. Application via CBP's first-sale valuation framework; supported by multiple CBP HQ rulings.35

The call on consumer electronics & FBA: CAPE refunds first, §232 derivative audit second, FSFE scoping third. The derivative audit is the highest-urgency new item — live today, and most operators are unaware.
III. Category · Metal components & §232

The duty-base trap.

The April 6 restructuring is the category-defining event of 2026 so far. The prior quarterly-inclusion process is terminated. Commerce and USTR may now expand coverage at their own discretion without the product-petition cycle. For a manufacturer without pricing power or the ability to substitute to US melted-and-poured sourcing, it is existential.

TL;DR · Chapter III · Metals Existential
If you’re
A $5M–$50M manufacturer importing steel, aluminum, fasteners, forgings, machined parts, or derivative components.
Do this
Re-forecast landed cost on every covered input under the new full-customs-value base. Pull MTRs on top 3 input categories. Scope the 10% US-melt-and-pour path.
Worth
+$1.76M/yr cost impact for a $20M mfr on $8M inputs · $600K/yr saving from switching to 10% US-melt path on $4M Ch. 73 fasteners/forgings.
Reader:  small manufacturers, $5M–$50M revenue, importing steel · aluminum · fasteners · forgings · machined parts · derivative components

What changed this week — and it’s everything

The April 6 restructuring is the category-defining event of 2026 so far. The prior regime’s quarterly inclusion process is terminated. Commerce + USTR may now expand coverage on a rolling basis at their own discretion without the product-petition comment cycle.736

Current duty stack — post-restructuring

CategoryHTS scopeRateBase
Primary steelCh. 7250%Full customs value
Primary aluminumCh. 7650%Full customs value
Primary copperCh. 7450%Full customs value
Steel derivativesCh. 73 + listed25%Full customs value
Aluminum derivativesCh. 76 + listed25%Full customs value
Metal-intensive industrial + grid equipmentListed (Annex III)15% floorThrough Dec 31, 2027
≥95% US melted-and-pouredVarious10%Full customs value
<15% covered metal by weightVariousExemptfrom §232

Country treatment — collapsed to baseline

CountrySteelAluminumCopperNotes
UK25% (UK origin)25% (UK origin)25%Aerospace exemption preserved
RussiaElevatedElevated (historically 200% Al)Elevated
Canada, Mexico (USMCA copper)50% steel50% aluminumExcludedqualifying copper derivatives only
All others50% / 25% derivatives50% / 25% derivatives50%Prior exemptions eliminated

Prior country-specific TRQs (EU, UK, Japan, South Korea) are eliminated under the new regime. Country-rotation playbooks are dead plays.717

The duty-base trap

Under the prior regime, a $100 steel derivative containing $20 of covered steel paid 50% × $20 = $10 of §232. Under the new regime, that same product pays 25% × $100 = $25 — a 2.5× increase on an identical article despite the nominal rate moving down from 50% to 25%.67

Real examples:

A precision-machined steel bracket ($50 landed, $15 steel content) was paying $7.50 of §232; now pays $12.50. A forged aluminum housing ($200 landed, $60 aluminum content) was paying $30; now pays $50. The same is true for any Ch. 73 or covered Ch. 76 HTS.

Cost impact · $20M mfr · $8M inputs +$1.76M/yr
Mid-2024 baseline
~$1.44M
$1.2M raw + ~$240K derivatives
Apr 2026 run-rate
~$3.2M
$2.4M raw + $800K derivatives
Delta
+$1.76M/yr
~9 pts on input cost
Hypothetical 60/40 split: $4.8M raw Ch. 72 at 25% (2024) → 50% (2026); $3.2M Ch. 73 at 25% metal-content → 25% full customs value. Assumes 30% avg metal content on derivatives in the old regime.

The play — US-melted-and-poured sourcing

The ≥95% US melted-and-poured carve-out (10% rate, vs. 50%) is the largest structural arbitrage the new regime opens.7 For manufacturers with overseas machining or fabrication capacity, it is now economic to: source raw steel or aluminum from a US mill, ship to overseas fabrication, and re-import the finished component. Import pays 10% §232 — the US origin of the metal governs, not the country of fabrication. Documentation bar: mill test reports (MTRs) must establish US melt-and-pour with ≥95% metal content.

The saving: $600K/yr on a $4M Ch. 73 fastener/forging line.

Against one-time fabrication requalification and MTR-tracking system costs. This is not a loophole. It is an explicit policy tool of the April 2 proclamation; the administration’s stated intent is to reroute demand toward US primary-metals producers. The manufacturers who move first lock in the lowest-cost US mill slots.

The call on metals: The US melt-and-pour arbitrage is the only structural saving offered by the April 2 proclamation. It takes 90–180 days to operationalize (MTR tracking, mill qualification, entry-level procedural change). The cost of being last in line is a full step up the duty ladder.

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Sources & methodology

Prior Research compiles weekly tariff intelligence from Federal Register rulings and notices, USTR and CBP primary sources, Commerce Department proclamations, Court of International Trade filings, Supreme Court opinions, trade-law firm analysis, and trade press. All factual claims are traced to a URL. Figures we could not independently verify are flagged in-line and excluded from quantitative tables. No content is generated from model training data. Research window for this issue closed 5:00 PM ET, Thursday April 16, 2026.

  1. The Budget Lab at Yale, State of U.S. Tariffs: April 8, 2026.
  2. CBP CSMS #68315804, Introduction – CAPE for IEEPA Refunds (April 10, 2026).
  3. Penn Wharton, Supreme Court Tariff Ruling: IEEPA Revenue and Potential Refunds (Feb 20 & Apr 15, 2026).
  4. Thompson Hine SmarTrade, CBP Confirms April 20, 2026 Launch of Phase 1.
  5. Covington & Burling, CBP Announces April 20 Launch of CAPE.
  6. Baker Botts, Trump Tariff Tracker – April 13, 2026.
  7. Perkins Coie, Restructured Section 232 Tariffs on Aluminum, Steel, and Copper.
  8. Trembach Law, De Minimis §321 Global Suspension Continued.
  9. CBP CSMS #66065494, Guidance: Suspension of §321 for All Countries.
  10. National Law Review, Refund Rollout: Getting Your House In Order (Apr 16, 2026).
  11. Supreme Court, Learning Resources, Inc. v. Trump, No. 24-1287 (Feb 20, 2026).
  12. White & Case, US Terminates IEEPA-Based Tariffs.
  13. Bradley, CIT Orders Reliquidation of IEEPA Duties.
  14. Troutman Pepper Locke, CBP Details on IEEPA-Related Refund Mechanism.
  15. JD Supra, CIT Clarifies Broad IEEPA Tariff Refund Scope (Mar 30, 2026).
  16. RefundArrow, CAPE Pre-Filing Checklist.
  17. White & Case, US Modifies Steel, Aluminum, and Copper §232 Tariffs.
  18. AAEI, Tariff Actions Timeline and Customs Service Messages.
  19. Sandler, Travis & Rosenberg, Section 301 Tariffs on China.
  20. USTR, China §301 Tariff Actions and Exclusion Process.
  21. C.H. Robinson, §301 China Tariffs & Exclusions Guide.
  22. White & Case, US Finalizes §301 Tariff Increases on China.
  23. USTR, USTR Extends Exclusions (Nov 26, 2025).
  24. White House, Fact Sheet: US-China Trade Deal (Nov 1, 2025).
  25. Federal Register, Large Diameter Welded Pipe from Canada: AD Review Rescission (Apr 10, 2026).
  26. Federal Register Vol. 91 No. 68 (Apr 9, 2026).
  27. USTR, §301 Maritime Services Fees FRN.
  28. USITC Harmonized Tariff Schedule.
  29. Pham Fashion House, Vietnam Apparel Tariffs: 2026 Import Cost Guide.
  30. TariffsTool, US Tariffs on Vietnam — 10% (2026).
  31. Greenwich Mercantile, HTS Codes for Apparel: Chapter 62 Tariff Guide.
  32. CBP CROSS rulings database.
  33. Cassidy Levy Kent, US Issues §232 Aluminum and Steel Derivatives Lists.
  34. GEODIS, US Changes to §232 Steel, Aluminum, and Copper (Apr 6, 2026).
  35. CBP CROSS · First Sale valuation framework.
  36. ArentFox Schiff, Presidential Proclamation Overhauling §232 Tariffs.