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CAPE Phase 2 in ACE: Post Summary Correction Mechanics, Filing Window, and When CAPE Beats 19 CFR 174 Protest

CBP launched CAPE (Cargo Automation and Post-Entry) Phase 2 on April 20 2026 in ACE and expanded PSC filing eligibility to reconciliation-flagged entries, pending ADD/CVD determinations, and rate-assignment pending entries. This evergreen procedure covers the 314-day filing window under 19 CFR 141.111, filing steps in CAPE, documentary support requirements, the workflow between CAPE PSC and 19 CFR 174 protest at liquidation, and the practical scenarios where CAPE beats protest (classification errors, valuation corrections, rate-assignment corrections on 232 and 301 stacks) versus scenarios where protest remains primary (post-liquidation disputes, legal argument reversals, precedent citations).

Updated 2026-08-125 min read
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CBP launched CAPE (Cargo Automation and Post-Entry) Phase 2 in ACE on April 20 2026 and materially expanded Post Summary Correction filing eligibility. For importers running Section 232 aluminum and steel stacks, Section 301 forced-labor tier assignments, Section 338 Canada implementations, USMCA reconciliation entries, or general classification and valuation corrections, CAPE Phase 2 is the primary refund pathway for pre-liquidation corrections.

What CAPE Is

CAPE stands for Cargo Automation and Post-Entry. It is the ACE module that handles Post Summary Corrections under 19 CFR 141.111, reconciliation adjustments, and post-entry rate-assignment corrections. It is distinct from AES (Automated Export System) and from the general ACE Entry Summary module. Filers access CAPE through their broker's ACE credentials after obtaining Phase 2 module authorization from CBP.

Phase 1 launched in 2024 and covered basic PSC filings on straightforward corrections: misclassification, quantity, valuation on non-reconciliation entries. Phase 2 launched April 20 2026 and expanded eligibility to:

  • Reconciliation-flagged entries. Previously required waiting for the reconciliation entry to close (typically 21 months) before any correction could be filed on the underlying entry.
  • Pending ADD/CVD determinations. Entries flagged for post-entry ADD or CVD assignment can now be corrected on the base HTS or country-of-origin question without waiting for the AD/CVD determination.
  • Rate-assignment pending entries. Entries where the broker guessed at Chapter 99 heading assignment because CBP had not published the specific heading number can be corrected once CBP publishes the number, without waiting for liquidation.

Filing Window

The CAPE PSC filing window is 314 days measured from the date of the entry summary filing. For most consumption entries the entry summary is filed within 10 business days of release, so the practical window from release date is approximately 300 days. For FTZ withdrawal entries the entry summary date is the withdrawal date and the 314-day window runs from there. For bonded warehouse withdrawal entries the same rule applies.

The window closes when the entry liquidates (typically 314 days after entry summary if no extension) or at day 314 whichever comes first. After liquidation, 19 CFR 174 protest becomes the primary vehicle with its own 180-day window.

When CAPE Beats Protest

CAPE PSC is faster and lower burden than 19 CFR 174 protest for the following correction types:

  • Classification corrections where the correct HTS heading is documentable through the invoice, packing list, and product spec.
  • Rate corrections where the broker applied the wrong Chapter 99 heading or missed a rate layer (Section 232, Section 301, Section 338, ADD/CVD).
  • Valuation corrections through a correction invoice or credit memo.
  • Quantity corrections through bill of lading, packing list, or delivery receipt.
  • Origin corrections through certificate of origin (USMCA, other FTA) or substantial transformation analysis.
  • Admission date corrections for FTZ or bonded warehouse entries where the correct admission date supports a rate lock or PF election that was mis-coded at admission.

Typical CAPE PSC clearance: 60 to 120 days from filing to refund. Refund lands directly to the Importer of Record's ACH account.

When Protest Remains Primary

19 CFR 174 protest is the right vehicle when:

  • The entry has already liquidated and the 314-day PSC window has closed.
  • The correction requires legal argument that goes beyond documentary error correction. Examples: disputing CBP's interpretation of a Chapter 99 heading applicability, challenging a CBP determination on substantial transformation, reversing a CBP origin ruling.
  • Precedent citation from HQ rulings or court decisions is the primary basis for the correction.
  • The correction is a follow-on to a rejected CAPE PSC and requires citing the CAPE rejection reason plus additional legal argument.

Protest filing window: 180 days from liquidation. Protest packages typically include HQ rulings, court decisions, detailed legal briefs, and citations. Clearance: 6 to 18 months from filing to resolution.

Filing Steps in CAPE

  1. Broker (or supplemental filer) logs into ACE and opens the CAPE module.
  2. Broker identifies the entry summary by entry number and date.
  3. Broker selects PSC filing type (classification correction, rate correction, valuation correction, quantity correction, origin correction, admission date correction).
  4. Broker uploads supporting documentation appropriate to the correction type.
  5. CBP CAPE workflow reviews the PSC and either accepts (refund lands to IOR ACH account within 30 to 60 days of acceptance) or rejects (with reason code that the broker can address on refile or that becomes the basis for a 19 CFR 174 protest at liquidation).

Interaction With 19 USC 1520(d) FTA Preferential Claims

CAPE Phase 2 does not replace 1520(d). The two are complementary. 1520(d) is the specific pathway for post-entry claims of preferential tariff treatment under a free trade agreement (USMCA, US-Korea FTA, US-Colombia TPA, US-Japan Trade Agreement, and others). 1520(d) claims file within one year of entry, are typically filed as reconciliation entries, and produce refunds of the MFN duty differential.

CAPE Phase 2 handles PSC corrections that are not FTA-preferential in nature: classification, valuation, quantity, rate assignment, admission date. If an entry has both an FTA claim and a separate PSC correction, file the 1520(d) claim through reconciliation and the PSC through CAPE, with cross-reference between the two.

Broker Capability Check

Not all brokerages have integrated CAPE Phase 2 into their ACE filing workflow. Phase 1 launched in 2024 and Phase 2 expanded coverage only in April 2026. Some smaller brokerages still file corrections exclusively through 19 CFR 174 protest at liquidation because the CAPE integration lift was significant.

For importers running material Section 232, Section 301, Section 338, or ADD/CVD exposure, using a broker that files exclusively through protest adds 314 to 500 days to the refund cycle compared to CAPE PSC. Ask for the broker's CAPE ACE user credential setup date. Any credential from April 20 2026 or later confirms Phase 2 capability. If the broker cannot produce evidence of Phase 2 capability, consider a supplemental filer for the CAPE portion of the correction workflow while keeping the primary broker for entry summary filings.

References

  • 19 CFR 141.111 (Post Summary Corrections)
  • 19 CFR 174 (protest at liquidation)
  • 19 USC 1520(a)(4) (interest on refunds)
  • 19 USC 1520(d) (FTA preferential post-entry claims)
  • CBP CAPE Phase 2 launch announcement April 20 2026 (cbp.gov/trade/ace/cape)
  • NCBFAA trade advisories on CAPE Phase 2 implementation

Frequently asked questions

What does CAPE stand for in the CBP ACE context?

CAPE stands for Cargo Automation and Post-Entry. It is the ACE module that handles Post Summary Corrections, reconciliation adjustments, and post-entry rate-assignment corrections. CAPE Phase 1 launched in 2024 and covered basic PSC filings. Phase 2 launched April 20 2026 and expanded coverage to reconciliation-flagged entries, pending ADD/CVD determinations, and rate-assignment pending entries. CAPE is distinct from AES (Automated Export System) and from the general ACE Entry Summary module. Filers access CAPE through their broker's ACE credentials after obtaining Phase 2 module authorization from CBP.

What is the CAPE PSC filing window and when does it start running?

The CAPE PSC filing window is 314 days measured from the date of the entry summary filing under 19 CFR 141.111. For most consumption entries the entry summary is filed within 10 business days of release, so the practical window from release date is approximately 300 days. For FTZ withdrawal entries the entry summary date is the withdrawal date and the 314-day window runs from there. For bonded warehouse withdrawal entries the same rule applies. The window closes when the entry liquidates (typically 314 days after entry summary if no extension) or at day 314 whichever comes first.

What documentation is required for a CAPE PSC filing?

The documentation package depends on the correction type. For classification corrections: original invoice, packing list, HTS classification memo from the importer or classification broker citing the correct HTS heading with reasoning. For rate corrections: entry summary showing the incorrect rate applied, documentation of the correct rate (Chapter 99 heading citation, CSMS message if applicable, statutory basis under HTSUS). For valuation corrections: original invoice, correction invoice or credit memo, freight documents showing correct incoterm. For quantity corrections: bill of lading, packing list, delivery receipt showing correct quantity. For origin corrections (USMCA, other FTA): certificate of origin, tariff-shift analysis if substantial transformation is at issue, mill certificates or BOM records for textile/apparel origin. For FTZ admission-date corrections: original Form 214, admission log, 146.3 escalation letter if applicable, port director response if received.

How does CAPE PSC differ from 19 CFR 174 protest at liquidation?

CAPE PSC files pre-liquidation, any time within 314 days of entry summary. It corrects the entry summary before CBP liquidates. If accepted, refund lands to the IOR ACH account without protest process. 19 CFR 174 protest files post-liquidation, within 180 days of liquidation. Protest is a formal challenge to CBP's liquidation decision and requires stronger legal argument (protest packages typically include HQ rulings, court decisions, and detailed legal briefs). CAPE PSC is faster (60 to 120 days to refund vs 6 to 18 months for protest resolution) and lower burden (documentary correction vs legal argument). Protest is the right vehicle when the liquidation is final and the importer disputes CBP's legal interpretation. CAPE is the right vehicle when the entry summary contains a correctable error.

When should I file CAPE PSC versus 19 CFR 174 protest?

File CAPE PSC first for any correctable error identified pre-liquidation. Classification corrections, valuation corrections, rate assignments where the broker made a documented error, admission date corrections for FTZ or bonded warehouse entries, quantity corrections. If CBP rejects the CAPE PSC, file 19 CFR 174 protest within 180 days of liquidation citing the CAPE rejection reason and adding legal argument. File 19 CFR 174 protest first only if: (a) the entry has already liquidated and the 314-day PSC window has closed, (b) the correction requires a legal argument that goes beyond documentary error correction (for example, disputing CBP's interpretation of a Chapter 99 heading applicability), or (c) precedent citation from HQ rulings or court decisions is the primary basis for the correction.

Can CAPE PSC be filed on entries flagged for reconciliation?

Yes, this is the Phase 2 expansion delta. Before April 20 2026, entries flagged for reconciliation required waiting for the reconciliation entry to close (typically 21 months after entry summary) before any correction could be filed on the underlying entry. Phase 2 allows PSC filings on the underlying entry while reconciliation remains open, provided both filings cross-reference. For importers running consolidated USMCA claims or first-sale valuation claims through reconciliation, this is operationally significant: the reconciliation entry can continue to track the primary position while the CAPE PSC on the underlying entry corrects secondary errors (misclassification on individual line items, rate assignment corrections, quantity errors).

What is the CAPE PSC acceptance rate?

CBP has not published a formal acceptance rate for CAPE PSC filings. Anecdotal reports from broker forums and NCBFAA trade advisories through Q2 2026 suggest PSC acceptance on classification and rate-assignment errors is approximately 70 to 80 percent when the filing includes full documentary support. Acceptance rates are lower on origin corrections requiring substantial transformation analysis (60 to 70 percent) and on valuation corrections involving related-party pricing (50 to 60 percent). Importers should file PSC as the first-line vehicle but budget for 19 CFR 174 protest fallback on 20 to 30 percent of filings, especially for complex corrections.

What refund pathway does an accepted CAPE PSC follow?

An accepted CAPE PSC produces a refund that lands to the Importer of Record's ACH account within 30 to 60 days of CBP's acceptance decision. The refund is the difference between the duty, fees, and taxes paid at entry summary and the duty, fees, and taxes owed per the corrected filing. No separate refund petition is required. The IOR does not need to file a separate 19 USC 1520 claim. The CAPE PSC acceptance itself functions as the refund authorization. Interest on the refund is calculated per 19 USC 1520(a)(4) at the current CBP interest rate from entry summary date to acceptance date.

How does CAPE Phase 2 interact with 19 USC 1520(d) FTA-preferential post-entry claims?

CAPE Phase 2 does not replace 1520(d). The two are complementary. 1520(d) is the specific pathway for post-entry claims of preferential tariff treatment under a free trade agreement (USMCA, US-Korea FTA, US-Colombia TPA, US-Japan Trade Agreement, and others). 1520(d) claims file within one year of entry, are typically filed as reconciliation entries, and produce refunds of the MFN duty differential. CAPE Phase 2 handles PSC corrections that are not FTA-preferential in nature: classification, valuation, quantity, rate assignment, admission date. If an entry has both an FTA claim and a separate PSC correction, file the 1520(d) claim through reconciliation and the PSC through CAPE, with cross-reference between the two.

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