The HTS “Special” Rate Column, Decoded: Which Countries Get Duty-Free Entry Into the US

Last updated October 12, 2026·Data: official USITC HTS export, 2026-10-09

The Harmonized Tariff Schedule gives every imported product three numbers people argue about: the 10-digit code, the General rate, and the Special rate. Importers know the first two. The third is routinely copied into spreadsheets as an unreadable blob of parentheses — “(A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)” — or ignored entirely. That blob is a pricing signal most shippers never cash in.

Here is the counterintuitive part: the Special subcolumn is not about discounts. Wherever it prints at all in chapters 1–97, it prints Free — in our recomputation, every one of the 14,689 populated Special cells begins with the word Free. The column answers a single question: from which trading partners is this product duty-free? Read it wrong and you either pay duty you never owed, or you promise a customer a landed price your origin cannot legally deliver.

The legend: every symbol, decoded

General Note 3(c)(i) defines exactly one symbol per program. The current edition (Revision 21, 2026) lists the following; we reproduce it because the letters alone are meaningless without it.

• FTAs (reciprocal agreements): AU Australia, BH Bahrain, CL Chile, CO Colombia, IL Israel, JO Jordan, JP Japan (the 2020 limited-scope trade deal, not a full FTA), KR Korea, MA Morocco, OM Oman, P (+ P+) CAFTA-DR, PA Panama, PE Peru, SG Singapore, and S (+ S+) USMCA for Canada and Mexico.
• Unilateral preference programs: A, A* and A+ for the three GSP tiers, D for AGOA, E and E* for CBERA, R for CBTPA, NP for Nepal, J and J* for West Bank/Gaza qualifying industrial zones.
• Sectoral carve-outs: B automotive products, C civil aircraft, K pharmaceuticals, L intermediate chemicals for dyes.
• Legacy: CA and MX survive on a handful of lines from the NAFTA era (superseded by S/S+ under USMCA).

How much of the schedule each program unlocks

We parsed all 14,689 populated Special cells in the schedule and counted how often each symbol appears, sorted by coverage. The result is a hierarchy of preferential access that no summary page shows side by side:

Three readings matter. First, the reciprocal FTAs cluster tightly at the top: each partner enjoys duty-free treatment on roughly 63.3% of all preferential lines, because modern US FTAs liberalize nearly the whole tariff schedule. Second, the unilateral programs are far narrower — AGOA (D) reaches about 42% of preferential lines and GSP (A) only about 19% — so a sourcing move from, say, Korea to a GSP beneficiary can lose coverage on many lines even though both are “duty-free programs.” Third, sectoral symbols (B, C, K, L) are small in line count but enormous in commercial weight: civil aircraft parts and pharmaceuticals carry huge invoice values.

Where the money is: worked examples

A Free special rate is worth the general rate you avoid. On the median dutiable line that carries a Free special column, that is about 6.0%; at the extremes it is dramatic:

On a $200,000 shipment of other, the gap between paying 350% and qualifying for a zero rate is six figures — which is why origin documentation audits have become a board-level topic for high-rate categories. And because these percentages apply to customs value, not retail price, the saving scales with every cost increase upstream.

How eligibility actually works

The symbol is an offer, not a grant. To enter goods under a special rate you must satisfy four gates, and the importer of record carries the burden of proof:

1. Origin:
2. Documentation:
3. Direct shipment:
4. The claim itself:

GSP adds a tier system worth understanding: A+ marks articles eligible only from least-developed beneficiaries, A* marks provisions where specific competitive-necessity-excluded countries may not claim, and bare A covers the general beneficiary list. The differences decide whether a supplier in one developing economy quotes duty-free while a neighbor pays the general rate on the identical product.

Two limits people forget

Chapter 99 still applies. A Free special rate clears the base schedule only. Additional duties — safeguards, Section 232/301-type measures, reciprocity provisions — live in Chapter 99 and apply by their own scope tests regardless of your preferential claim. Before promising a customer a zero-duty landing, screen the line for add-ons; our companion piece on stacked tariffs walks the arithmetic.

Coverage moves. Programs expire, GSP lapses and gets renewed, review lists exclude lines, and staged reductions change the picture mid-year. Treat any cached screenshot of a rate as stale: re-pull the line from the live schedule each time you quote. Our monitoring plans exist precisely because this column changes without announcement — see plans and pricing.

A five-minute workflow before you sign a supply contract

1. Look up the exact 10-digit line — start from the HS chapter index and drill to the statistical suffix.
2. Read the Special cell. If your origin's symbol is absent, the general rate is your floor — negotiate prices accordingly.
3. If present, confirm the rule of origin for that program and collect the paperwork before the goods ship.
4. Recompute landed cost with the duty and landed-cost calculator, including any Chapter 99 layers.
5. Set a reminder to re-check the line quarterly — or let the monitoring tier watch it for you.

• Open the landed-cost duty calculator.
• Open the monitoring plans and pricing.
• Open the HS chapter 61 tariff lookup.
• Open the how Chapter 99 add-ons stack on top of base rates.
• Open the which lines are duty-free in the base schedule.

Methodology and data freshness

All counts come from the USITC HTS REST export captured 2026-10-09 and stored as our working dataset: 23,193 administrative lines across 97 chapters, of which 14,689 carry a populated Special subcolumn — every one beginning with Free, 8,504 lines are Free in the General column, and 106 distinct symbol combinations occur across the schedule. We re-parse the raw export at page-generation time rather than copying figures, so regenerating this page after the next USITC release updates every number automatically. The legend is transcribed from General Note 3(c)(i) of the printed schedule; program-tier semantics (A/A*/A+ and friends) follow General Note 4. Nothing here is legal advice — for binding decisions, consult your broker or counsel under the governing regulations.

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