Which Ten-Digit Line Pays on September 29?

At 12:01 on the morning of September 29, one line of the US tariff schedule stops working.

The line is 9903.04.61. Since July 31 it has carried every patented pharmaceutical article imported by a company that is not named in Annex III of Proclamation 11020, at zero additional duty.

CBP's own wording for it is narrow and dated: it applies to articles "entered before 12:01 a.m. eastern time on September 29, 2026."

Ten days.

"Which of the ten-digit lines you actually buy is on the list that pays?"

The rung you have been standing on

We traced the classification mechanics of this proclamation on August 10, when the reporting obligation was three weeks old. The scope has not changed since.

The date has arrived.

What replaces 9903.04.61 depends on where the article was made and who made it:

• 100 percent under 9903.04.60 for the seventeen Annex III companies, live since July 31.
• 15 percent under 9903.04.62 for products of Japan, the EU, South Korea, and Switzerland and Liechtenstein jointly.
• Zero under 9903.04.63 for UK products. That heading was issued at 10 percent and cut to zero by 91 FR 49406, effective the same July 31 instant.
• 20 percent under 9903.04.64 with a Commerce-approved onshoring plan, escalating to 100 percent on April 2, 2030.
• Zero under 9903.04.65 through .69, which cover onshoring plus an MFN pricing agreement, designated special uses, generics, US-origin active ingredient in dosage form, and non-pharmaceutical articles that happen to sit in the same customs classifications.

The headings are mutually exclusive, and where more than one could apply, CBP takes the lowest. So the whole question is which heading your entry claims.