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April 2024, question 53
Entry / Entry Summary · ACE entry summary data and business rules
Which of the following data elements of an entry summary (CBP Form 7501) may not be changed through the submission of a Post-Summary Correction (PSC)?
- Country of origin
- Description of the merchandise
- Port of entry
- Tariff number under the Harmonized Tariff Schedule of the United States (HTSUS)

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CBP's answer: C. C: Port of entry
The BRPD lists data elements that cannot be changed through a PSC for any entry type, and Port of Entry is on that list, along with the importer of record and the date of entry. Country of origin, description and the tariff number can be corrected by PSC, so the answer is C.
Data elements that cannot be changed for any entry type: • Importer of Record ACE BRPD Section 6.5
Port of Entry • Cargo release certification request indicator ACE BRPD Section 6.5
Search for: In-Eligible Changes
Question and key from CBP's April 2024 exam and answer key. The walk-through is ours; quotes are from the pinned editions in the reference viewer (HTSUS 2026 Basic, 19 CFR 2025 edition).