Section 232 Technical Corrections: New HTS 9903.82.01 for Non-Metal Articles, Retroactive to April 6, 2026 (FRN 2026-08297)
## Section 232 Technical Corrections: New HTS 9903.82.01 for Non-Metal Articles, Retroactive to April 6, 2026
On Wednesday, April 29, 2026, the Federal Register published Notice 2026-08297 — a set of technical corrections to Annex IV of Presidential Proclamation 11021 (the April 2, 2026 Section 232 restructure on aluminum, steel, and copper). The notice reintroduces HTS subheading 9903.82.01 specifically for goods imported under HTSUS headings listed in Note 16 of Subchapter III, Chapter 99 that do not contain any aluminum, steel, or copper. The change is effective retroactively for entries filed on or after 12:01 a.m. Eastern Time on April 6, 2026.
For US importers who have been filing entries during the past three weeks under headings that fall partially within Section 232 scope — for example, mixed-material derivative parts, plastic-and-metal assemblies, or finished goods classified in chapters that list both metal and non-metal articles — this is one of the most consequential CBP procedural updates of the spring. If you paid 50% Section 232 duty on a non-metal article between April 6 and April 29 because your broker had no clean HTS path to flag it as out of scope, that overpayment is now refundable through the standard post-summary correction process.
What Actually Changed in the Notice
Proclamation 11021, signed on April 2, 2026 and effective April 6, 2026, restructured Section 232 to apply 50% ad valorem duties to the full customs value of any article classified in HTSUS headings listed in Note 16 of Subchapter III, Chapter 99 if that article contains aluminum, steel, or copper. The intent of the proclamation was to capture derivatives — products like steel furniture, aluminum bottles, copper wire harnesses, and metal-content automotive parts — under the 50% Section 232 rate.
The drafting problem the April 29 notice addresses: the headings listed in Note 16 are broad. Many of them include both metal-content and non-metal articles. Without a clean HTS subheading to flag a non-metal article as out of scope, brokers had three bad options between April 6 and April 29:
1. File the non-metal article under the parent heading and pay 50% Section 232 on the full customs value (over-collection). 2. File the non-metal article under a different chapter to avoid the Section 232 designation (technically misclassification). 3. Hold the entry pending CBP guidance, which created warehouse demurrage and supply chain delay.
The April 29 technical correction creates HTS subheading 9903.82.01 as the proper line for non-metal articles classified in Note 16 headings. Goods properly entered under 9903.82.01 are explicitly outside the scope of the 50% Section 232 measure on aluminum, steel, and copper. The notice also includes a separate clarification confirming that articles which are not metal articles or derivatives of metal articles remain outside Section 232 scope, even if their parent heading is listed in Note 16.
The retroactive effective date — April 6, 2026 — is the critical operational detail. Any entry filed on or after April 6 that paid 50% Section 232 on a non-metal article in a Note 16 heading is eligible for correction.
Worked Example: Plastic Storage Bins With Steel Reinforcement Strips
Consider a US importer of large industrial plastic storage bins from Vietnam. The bins are classified under HTS 3924.10 (plastics for the conveyance or packing of goods). HTS 3924 is on the Note 16 list because some derivative configurations contain steel reinforcement.
A specific shipment contains 4,000 bins. 3,200 of the bins are pure HDPE plastic (no metal). 800 of the bins include four small steel reinforcement strips per bin (approximately 0.4 kg of steel each). Customs value of the shipment is $120,000, allocated $95,000 to the all-plastic bins and $25,000 to the metal-reinforced bins.
Filed April 10, 2026 (before the technical correction):** - Section 122 (10%): $12,000 - Section 232 (50% on full $120,000 because the parent heading is in Note 16 and there was no clean way to split): $60,000 - Base MFN (3.4% on bins): $4,080 - **Total duty: $76,080
Refiled May 1, 2026 (under the technical correction):** - Section 122 (10%): $12,000 - Section 232 (50% on the $25,000 metal-reinforced portion only, filed under the correct Note 16 line): $12,500 - Section 232 on $95,000 of all-plastic bins: $0 (filed under HTS 9903.82.01, out of scope) - Base MFN (3.4% on bins): $4,080 - **Total duty: $28,580
Refund eligible: $47,500. That is the duty differential the importer had to over-collect on the all-plastic portion under the pre-correction rules.
For an importer running this kind of mixed-material program at $5M annual volume, the correction is roughly $2M of duty exposure that should never have been collected in the first place.
Who Is Most Affected
The technical correction has the largest impact for importers in the following categories:
Plastic and rubber goods classified in HTS chapters 39 and 40 — many subheadings include derivatives with metal reinforcement, so the parent heading appears in Note 16 even though most product variants are pure plastic or rubber.
Furniture and lighting (HTS chapters 94) — wood furniture, glass lighting, and upholstered seating with optional metal frames sit in headings that also cover all-metal furniture variants.
Toys, sports equipment, and other consumer goods (HTS 95) — many product lines include both all-plastic and metal-reinforced variants.
Optical, medical, and precision instruments (HTS 90) — diagnostic and measurement equipment with mixed-material housings.
Glass and ceramic articles (HTS 70 and 69) — particularly glassware and ceramic kitchenware with metal collars, handles, or bases.
If your import program touches any of these chapters and you have filed entries between April 6 and April 29, your customs broker should be running a duty differential analysis this week.
How to File the Correction
The April 29 notice does not create a new refund mechanism. Refunds flow through the standard CBP post-summary correction (PSC) process under 19 CFR 174.21. The high-level steps:
1. Pull the affected entries. Identify every entry filed between April 6, 2026 and April 29, 2026 where Section 232 was assessed on the full customs value of a Note 16 heading article and the article (or some portion of it) is not metal. 2. Compute the duty differential. For each affected line, recompute Section 232 using only the metal-content portion of customs value, with HTS 9903.82.01 applied to the non-metal portion. The difference is the refundable amount. 3. File a PSC for each entry. PSCs must be filed within 270 days of the original entry summary date or before liquidation, whichever is earlier. For entries filed April 6, 2026, the 270-day window closes January 1, 2027 — a comfortable runway, but no reason to delay. 4. Wait for CBP processing. Standard PSC processing time is currently running 60 to 120 days. Refunds are issued via Treasury Disbursement to the importer of record's bank account on file with CBP.
If your entries are still under review and have not yet been liquidated, your broker can also file an entry summary update before liquidation, which is a faster path than a post-liquidation PSC.
For importers also processing IEEPA refunds through the CBP CAPE tool, the Section 232 PSC process is a separate workflow. CAPE handles only the IEEPA refunds tied to the February 2026 Supreme Court ruling. Section 232 corrections under HTS 9903.82.01 go through the regular ACE PSC pathway.
How This Stacks With the Rest of the 2026 Tariff Landscape
The April 29 technical correction does not change Section 232 rates, the universal Section 122 surcharge, or any Section 301 case. It only fixes the scope of which articles are subject to the 50% Section 232 rate within a Note 16 heading. The full duty stack as of May 1, 2026 looks like this:
- Section 232 metals: 50% on aluminum, steel, copper, and qualifying derivatives. Non-metal articles in Note 16 headings now properly classified under HTS 9903.82.01 are explicitly out of scope. - Section 122 universal surcharge: 15% on entries from non-USMCA origins. Statutory expiration July 24, 2026, unless Congress extends. - Section 301 China: Lists 1-3 at 25%, List 4A at 7.5%. Independent stacking authority. - Two new Section 301 investigations: Forced labor case (60 economies, hearings April 28-29) and excess capacity case (16 economies, March 2026). Earliest implementation fall 2026. - IEEPA refunds: Processing through CAPE Phase 1 since April 20, 2026. Approximately 11 million entries already accepted into the validation pipeline as of late April.
To model your specific exposure under the corrected Section 232 framework, use the Duty & Tariff Calculator. For the broader stacking math, see the Tariff Stacking in 2026 guide.
What FreightFigures Is Tracking This Week
The April 29 correction is one of three procedural updates in the past 10 days that materially affect importer duty obligations:
1. April 20: CBP CAPE Phase 1 went live for IEEPA refund processing. 2. April 28-29: USTR Section 301 forced labor hearings. 3. April 29: Section 232 technical corrections published (this article).
We expect a fourth procedural update before mid-May: USTR's preliminary guidance on the post-hearing comment window for the April 28-29 forced labor case. Importers running cross-program duty exposure should plan for week-over-week recalculation through at least the end of May.
The Bottom Line
The April 29, 2026 technical correction notice (FRN 2026-08297) creates HTS subheading 9903.82.01 for non-metal articles classified in Note 16 headings, retroactive to April 6, 2026. Importers who paid 50% Section 232 duty on the non-metal portion of mixed-material entries between April 6 and April 29 may file a post-summary correction to recover the differential. The 270-day PSC window for the earliest affected entries closes January 1, 2027 — there is no statutory rush, but the duty differential on high-volume mixed-material programs (plastics, furniture, lighting, optical instruments, glassware) can run to seven figures and the operational lift to refile is the same whether you do it this month or in October.
If you need help running a duty differential audit across your last 90 days of entries, identifying which lines qualify for HTS 9903.82.01 reclassification, or coordinating PSC filings with your customs broker, the team at Cate Freight can run the analysis and integrate with your ACE filer. Use the homepage quote form to start a conversation.
Frequently Asked Questions
Common questions about section 232 technical corrections
What does HTS 9903.82.01 cover?
HTS 9903.82.01 is a new Chapter 99 subheading reintroduced by Federal Register notice 2026-08297 on April 29, 2026. It is used to classify articles imported under HTSUS headings listed in Note 16 of Subchapter III, Chapter 99 that do not contain any aluminum, steel, or copper. Goods properly entered under 9903.82.01 are explicitly outside the scope of the 50% Section 232 measure on aluminum, steel, and copper imposed by Proclamation 11021.
Is the technical correction retroactive?
Yes. The technical correction is effective for entries filed on or after 12:01 a.m. Eastern Time on April 6, 2026 — the original effective date of Proclamation 11021. Any entry filed between April 6, 2026 and April 29, 2026 that paid 50% Section 232 duty on a non-metal article classified in a Note 16 heading is eligible for refund through a post-summary correction.
How do I file for a refund?
File a post-summary correction (PSC) under 19 CFR 174.21 through the ACE portal for each affected entry. For each line, recompute Section 232 using only the metal-content portion of customs value, with HTS 9903.82.01 applied to the non-metal portion. PSCs must be filed within 270 days of the original entry summary date or before liquidation, whichever is earlier. Standard PSC processing currently runs 60 to 120 days, with refunds issued via Treasury Disbursement to the importer of record's bank account on file with CBP.
Does this change the Section 232 tariff rate?
No. The technical correction does not change Section 232 rates. Steel, aluminum, and copper articles and qualifying derivatives remain at 50% ad valorem. The correction only fixes the classification scope: it makes clear that non-metal articles in Note 16 headings are outside Section 232 scope and provides the proper HTS subheading (9903.82.01) for entry filing.
Which import categories are most affected by the correction?
The correction has the largest impact for importers in HTS chapters 39 (plastics), 40 (rubber), 70 (glass), 69 (ceramics), 90 (optical, medical, and precision instruments), 94 (furniture and lighting), and 95 (toys and sports equipment). These chapters contain headings that are listed in Note 16 because they include some metal-content derivative variants, but the majority of product lines within those headings are non-metal.
Does this affect IEEPA refunds processed through CAPE?
No. The CBP CAPE tool processes IEEPA refunds tied to the February 2026 Supreme Court ruling. Section 232 corrections under the new HTS 9903.82.01 go through the standard ACE post-summary correction pathway and are a separate workflow. Importers may have parallel refund streams running through both processes for the same entry — IEEPA via CAPE and Section 232 via PSC — but the filings, timelines, and disbursement flows are independent.
What is the deadline to file a Section 232 PSC?
The PSC window is 270 days from the original entry summary date or before liquidation, whichever is earlier. For the earliest affected entries (filed April 6, 2026), the 270-day window closes approximately January 1, 2027. Most ACE entries liquidate 314 days after the entry summary date, so liquidation typically does not become the binding constraint, but importers should not assume that — confirm with your broker whether your entries are flagged for early liquidation.
Do I need to file a PSC for every line, or can I batch them?
Each entry summary requires its own PSC. Within a single entry, multiple line corrections can be bundled into one PSC filing. For high-volume mixed-material importers with hundreds of affected entries, your broker can typically process the PSC batch through ACE in a single workflow, but each entry is filed individually through its own PSC transaction.
Where can I read the full Federal Register notice?
The notice is published at federalregister.gov under document number 2026-08297, titled 'Notice of Technical Corrections to the Harmonized Tariff Schedule of the United States for Duties Imposed by Presidential Proclamation 11021.' The full text includes the complete updated Annex IV with the HTS 9903.82.01 subheading definition and the clarification language on non-metal articles in Note 16 headings.
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