1. Copper Filers Get Two Days' Notice Before CBP Starts Rejecting Entries, September 14

Current status

New Fatal ACE Error: Starting September 14, 2026, CBP will reject entry summaries for specified copper wire and cable classifications when the primary country of smelt and country of cast are missing, per CSMS #69711865. The requirement covers non-U.S.-origin imports under HTSUS 8544.42.10, 8544.42.20, 8544.42.90, and 8544.49.10.

• What Changes: The F794 error code moves from a warning to a fatal, entry-blocking rejection when the required record-type-12 data is absent.
• The Escape Hatch: "OTH" remains a permissible entry only when the country of smelt or cast is genuinely unknown, not as a default.
• What This Isn't: The underlying Section 232 copper tariff rate, 50% on semi-finished and derivative products since the April 2026 proclamation, is unchanged. This is a filing-data requirement, not a rate change.

Procurement action

Confirm Smelt-and-Cast Data Before September 14: Any copper filing on these four HTS lines needs a real answer, not a default.

• Ask suppliers now: Primary country of smelt and country of cast for every copper wire/cable shipment currently in transit or scheduled to clear after September 14.
• Do not default to "OTH": CBP's own guidance treats it as an exception for genuinely unknown origin, not a convenience field.
• Check the workbook, not just the shipment: Career Chronicles' own Section 232 Overlay reference for copper (last updated July 16, 2026, v5.2) does not yet carry this new reporting field. It correctly shows the 50% rate and the full-customs-value basis; it does not yet flag the September 14 smelt-and-cast requirement, which is exactly the kind of gap this refresh exists to catch.

2. Canada's Section 338 Tariff Scope Flips in Three Days, September 15

Current status

Annex Swap Takes Effect: At 12:01 a.m. Eastern on September 15, 2026, Proclamation 11064 modifies the scope of Canada's Section 338 tariffs. Products newly listed in Annex I Part A become subject to the additional 50% duty; products in Annex I Part B leave that duty scope entirely.

• Stacking Rule: The proclamation expressly states Section 338 duties apply in addition to Section 232 duties where both cover the same merchandise, not instead of them.
• Why This Matters Now: Tariff master data that is currently correct can be wrong within days; there is no grace period for reclassification.
• The Broader Fight: This scope change followed the administration's September 8, 2026 proclamations escalating the US-Canada dispute, including USTR's move to strip roughly $50 billion in Canadian products from federal GSA purchasing schedules, and arrived alongside Canada's own September 8 counter-tariffs on C$27.6 billion of US-origin goods.
• A Possible Off-Ramp: President Trump said September 12, 2026 that a trade agreement with Canada could come "fairly soon," tied to Canadian treatment of US agricultural exports. No terms were announced, and nothing changes the September 15 or 29 dates unless a formal action is published.

Procurement action

Run the Revised Annex Against Every Canadian SKU Before September 15: Prioritize open shipments and September receipts.

• Validate: Base HTS, Chapter 99 treatment, Section 338 status, and Section 232 overlap for every affected line.
• Don't treat the "fairly soon" comment as relief: Model current law only until a formal proclamation or agreement text exists.

3. Canada's Import Ban Is 17 Days Out, and It's a Supply Problem, Not a Cost Problem

Current status

US Import Prohibition: Starting September 29, 2026 at 12:01 a.m. Eastern, Proclamation 11063 prohibits importation of specified Canadian motor-vehicle-related products, dairy products, and alcoholic beverages.

• Transition Treatment: Covered goods imported before September 29 but not yet entered for consumption remain subject to the existing 50% Section 338 duty rather than the ban.
• Duty vs. Ban: A 50% duty is a cost that can be absorbed, negotiated, or passed through. A prohibition means a covered item cannot enter the country once the ban applies, at any price.
• There's a Drawback Angle Already in the Product: Career Chronicles' own Refund Opportunities tracker confirms Section 338 Canada duties are drawback-eligible, up to 99% recovery, on goods re-exported or destroyed under CBP supervision. For a prohibited SKU already in transit, that is a real option, not just an absorb-or-cancel choice.

Procurement action

Build the September 29 Exposure File, If It Doesn't Already Exist: This is the highest-priority action item on this page.

• Scope: Every Canadian-origin SKU potentially inside the covered categories.
• Capture: HTS classification, supplier, purchase-order quantity, expected US entry date, current inventory coverage, an alternate source if one exists, and whether re-export or destruction under CBP supervision is realistic for in-transit goods.

4. A Senate-Passed Bill Could Put a 100% Tariff on Countries Still Buying Russian Oil

Current status

House Rules Committee, September 14: The Senate passed the Lindsey O. Graham Sanctioning Russia and Iran Act of 2026, 86-11, and the House Rules Committee is scheduled to take it up September 14, 2026.

• What the Bill Would Do: Authorize, not require, the President to impose tariffs of up to 100% on countries that continue substantial purchases of Russian energy. China and India are named as the economies most exposed because of their existing Russian oil and gas purchases.
• Not Yet Payable: The House still has to pass it, and the President still has to act under it, before any tariff exists. Nothing is currently in effect.
• A Gap Already Sitting in the Product: Career Chronicles' own Country Quick Reference tab (v5.1, dated July 2, 2026) still lists India as "Section 301 Subject: No." That reflects the older, country-specific Section 301 regime the reference was built against; India has carried a forced-labor Section 301 rate since the July 24, 2026 rollout of that separate 60-economy action. Two exposures now stack on India-linked sourcing if this bill becomes law: an existing forced-labor rate the reference tab doesn't yet show, and a new potential 100% layer on top of it.

Procurement action

Build the Scenario Now, Don't Wait for Enactment: For major China- and India-origin spend, capture annual import value, current tariff rate, supplier dependency, alternate-country capacity, and qualification lead time.

• Prioritize: Categories where a 25%, 50%, or 100% scenario would materially change sourcing economics.
• Don't accrue anything yet: This is a watchlist item, not a rate to book.

6. New Hydraulic Cylinder Investigation Alleges Margins Up to 744.85%

Current status

Five-Country Case: Commerce initiated antidumping investigations September 9, 2026 on certain linear hydraulic cylinders and parts from Canada, China, India, South Korea, and Mexico, plus countervailing-duty cases on China, India, and Mexico.

• Alleged Margins: 248.33% to 744.85% for Canada; 103.05% to 440.48% for China; 85.31% to 370.67% for India; 73.09% to 158.74% for South Korea; 56.79% to 157.12% for Mexico. These are allegations in a petition, not payable rates.
• Next Date: USITC preliminary injury vote, September 28, 2026.

Procurement action

Map Exposure Immediately: Construction equipment, agriculture, mining, material handling, and industrial machinery buyers should not wait for a final rate.

• Capture: Actual producer, exporter, country, annual spend, part number, engineering qualification requirements, and alternate-source lead time.
• Do not: Put the alleged margins into payable-duty accruals.

7. Solar Panel Duties From India, Indonesia, and Laos Are Finalized, Not Final

Current status

Commerce Finalized September 11: Final antidumping margins on crystalline silicon photovoltaic cells and modules: 123.04% for India, 94.36% for Indonesia, 65.43% for Laos. Final countervailing-duty rates: 126.09% for India, 73.2% to 173.7% for Indonesia, 82.03% to 153.67% for Laos, depending on producer.

• Not Finished: The USITC's final injury vote is scheduled for October 14, 2026. An affirmative determination is required before Commerce issues final duty orders.
• Don't Blend the Numbers: AD and CVD rates are separate and producer-specific; do not apply one blended country rate.

Procurement action

Update Supplier-Specific Exposure Now: Capture producer/exporter, country of origin, cell origin, module assembly origin, AD case number, CVD case number, current cash-deposit instruction, and October delivery exposure.

10. Section 122 Is Still Closed, and the Refund Window Is Still Only Five Months Wide

Current status

Status Verification: The 10% Section 122 surcharge took effect February 24, 2026, was ruled unlawful by the CIT on May 7, 2026, and expired on its own 150-day statutory clock on July 24, 2026, before the Federal Circuit decided the pending appeal on the merits. It is not currently being collected.

• What's Unresolved: Refund eligibility on duties paid February 24 through July 24, 2026 depends on the pending Federal Circuit appeal, not a future expiration event.
• Don't Confuse the Two Trackers: The free 90-Day Tariff Risk Calendar's Refund Opportunities tab already carries two "Section 122 Contingent Refund (Litigation-Dependent)" rows covering this exact window; per-entry filing work belongs on the paid Section 122 Tracker tab below, not a third calendar row.

Procurement action

Confirm, Don't Re-File: Confirm the live rate lookup shows Section 122 as expired, not an active 10% surcharge, and that every entry from the window is still documented.

• Per-entry tracking: Use CBP Entry No., SKU, Original Rate, Sec 122 Rate, and Filing Status for anything paid in the window; mark filings "Monitoring, Appeal Pending," not filed on the invalidation alone.