A tariff is a cost you can choose to pay. A ban is a hole in the carton file.
On September 29, 2026, at 12:01 a.m. Eastern, U.S. Customs and Border Protection (CBP) began excluding listed Canadian-origin goods from importation. Cargo Systems Messaging Service (CSMS) #70050970 is the filing rule. The Automated Commercial Environment (ACE) now rejects a covered entry instead of letting you pay more to clear it.
The useful work for the person who pays for the container is not another duty map. It is this: pull the banned line, then see what still fits.
This is an operations note for the remaining load. It is not customs or legal advice. A broker confirms whether a specific heading is on the annex. A packing calculator does not.
What the CSMS actually does
CSMS #70050970 implements Presidential Proclamations 11061, 11062, and 11063. Covered Canadian goods cannot be entered for consumption, admitted to a foreign-trade zone, placed in a bonded warehouse, or moved in-bond. ACE cancels unreleased entries that still contain a covered product.
Filers get system rejects, not a higher duty bill:
- 335 — HTS not allowed for country of origin (cargo release)
- 239 — the same text on an e214 foreign-trade zone admission
- 886 — HTS prohibited for country of origin (entry summary)
The annexes sit under Harmonized Tariff Schedule headings 0404, 1702, 1703, 2202 through 2208, and 8711. In practice that is packaged alcohol, specified whey and molasses, non-alcoholic beer, and motorcycles over 800 cubic centimeters. Cars, most Canadian dairy, bulk alcohol, and motorcycles at or under 800 cc are not on that ban list.
United States-Mexico-Canada Agreement preference does not restore entry. The reject is origin and heading. It is not a preference you can elect.
Goods imported before September 29 that have not yet been entered for consumption, or that were already in a warehouse or zone, can still withdraw under the existing 50 percent extra duty. After that hour, a listed line that has not yet been imported cannot be worked around by paying more.
Why the remaining cartons still need a plan
Most mixed loads were built when the banned SKU was still a line on the purchase order. Removing it changes cube, weight, and what has to stay together.
Typical results:
- The remaining cartons no longer fill the 40-foot high cube you reserved.
- Weight drops, but the mix becomes light and bulky, so a high cube still wins and a standard 40-foot does not.
- The leftover count rises. One planned container becomes a full box plus a partial.
- A carton that had to ride with the banned SKU no longer has a reason to wait. It can move.
None of those answers come from the ACE error text. They come from the carton file after you delete the banned row.
Rebuild sequence before the next cutoff
Do this once, on the shipment that is actually on the floor.
- Freeze the current carton list. One row per SKU: length, width, height, unit weight, quantity. If dims live in an email, they will be wrong when you rebuild at 4 p.m.
- Mark every Canadian-origin heading against the CSMS annexes. The broker owns that mark. You own the quantity that remains after the mark.
- Delete the banned rows. Do not zero the duty and leave the carton in the box. ACE will reject the entry if that heading is still on it.
- Optimize the remaining list into the container types the dock can accept. Save utilization and leftovers for the high cube and for the fallback box.
- Send the forwarder the new plans, not the old one with a note that “alcohol is on hold.”
- Give the dock the 3D view of the booked plan. A row that will not close is cheaper to catch before the doors shut.
Palletizr is built for that sequence. Enter the remaining cartons, optimize for space, and add the ocean rate when the forwarder prices the new mix. Fit the remaining cargo. The landed-cost worksheet can stack a duty percent you already know. It cannot tell you whether a heading is banned.
What not to do
Do not treat the reject as a duty you can elect. Paying 50 percent does not clear a listed line imported on or after September 29.
Do not keep the banned carton in the container “until we hear back.” An entry that contains a covered product is cancelled. The rest of the box waits with it.
Do not rebuild from memory. Re-typing dims after an ACE reject is how a legal SKU is left on the dock.
Do not assume packing changes admissibility. A tighter load does not move a heading off the annex. Cube offsets freight and container count. It does not change a ban.
If part of the order already sailed
If the banned SKU is on the water and was imported before September 29, the broker can still attempt entry or warehouse withdrawal under the 50 percent extra duty. Confirm importation date, not sailing date.
If it was not imported before that hour, the remaining legal cargo is the only load you can plan. Rebuild that list. Book the container that fits it. Leave the banned line off the entry.
The calculator does not classify the product, file ACE, or replace the broker. It keeps the physical plan honest after the legal list changes.
As of October 1, 2026. Confirm every heading with a licensed customs broker before you file.