[Source or answer dispute] Official B: MPF base disputed

What you will learn

Disputed-question explanation: official result first, then historical evidence, limitations and uncertainty.

Saved full original question 24 (added fact, question, options A–D) and official key line, conflict-batch02. Original PDF: cble-ace/public/official-pdfs/october-2025-cble-exam.pdf (SHA-256 335ab9ee2c1dfd53f9a421e902efbc5be24813653e3019f55f3c9cefcf73e7b5); saved text ends 'PAGE 14 CBLE P. 14'. Options recorded as evidence only; A, C and D shown only as unanalysed printed choices.; October 2025 CBLE answer key text, lines 21, 23 and 24 (historical official answers). Original PDF: cble-ace/public/official-pdfs/october-2025-cble-answer-key.pdf (SHA-256 a041946095a3d4fe1905d2d19745aaab8a514ac62923de78f1247311542dc700).; October 2025 CBLE text: cover references; shared case facts (Category II); questions 21 and 23 stems and options. Extracted text of the exam PDF above.; Complete shared case facts for questions 21–25 (case note on document errors; $80,000 contract price; January 7, 2025 rebate email; air shipment; date of entry January 17, 2025; payment January 21, 2025) with the reviewer's transcription note of the physically viewed document pages.; Original exam page 11 (commercial invoice), physically viewed by this author. Image source; excerpt is this author's transcription, not a text substring.; Original exam page 12 (broker invoice), physically viewed by this author. Image source; excerpt is this author's transcription, not a text substring.; Original exam page 10 (Shark Airlines air waybill), physically viewed by this author; supports air carriage (not a vessel). Image source; excerpt is this author's transcription.; 19 CFR 152.103(a)(1) and (a)(4) (full (a) read, including all (a)(1) examples). Official XML: https://www.govinfo.gov/content/pkg/CFR-2024-title19-vol2/xml/CFR-2024-title19-vol2-sec152-103.xml (local XML SHA-256 047e1563cd5fe2a4fa9217e996d5becc9316bc93bf9482f7ad32b07ed6696a7a); 19 CFR 24.23(b)(1)(i)(A) and (B) (merchandise processing fee; full operative text read). Official XML: https://www.govinfo.gov/content/pkg/CFR-2024-title19-vol1/xml/CFR-2024-title19-vol1-sec24-23.xml (local XML SHA-256 ba006a21a6ea49d2d062b22ed04c593adcf40db2b6f10e707ed2f3358106ab78); 19 CFR 24.24(a) harbor maintenance fee trigger and (b)(3) definition of commercial vessel. Official XML: https://www.govinfo.gov/content/pkg/CFR-2024-title19-vol1/xml/CFR-2024-title19-vol1-sec24-24.xml (local XML SHA-256 6110d127be27005c3f6382159633e09094e12f45acb843d5adbcbadbc2ad7b23); HTSUS 2025 Basic Edition, chapter 99, subchapter III, U.S. note 20(r) (heading 9903.88.15, products of China). Local PDF: conflict-batch02-20261012/HTS2025Basic-99.pdf. · October 22, 2025 Customs Broker License Examination, 'Publication Number: 5258-1125' (as printed); October 2025 answer key 'CBP Publication: 5254-1125' (as printed; not reconciled). Exam references per cover: HTSUS (2025 Basic Edition, No Supplements) and Title 19 CFR ('2024 Revised as of January 1, 2024', as printed on the cover). Text used: GovInfo 2024 annual Title 19 (revised as of April 1, 2024) sections 152.103, 24.23 and 24.24, and the HTSUS 2025 Basic chapter 99 U.S. note 20(r) for heading 9903.88.15. The cover date January 1 and the annual-edition date April 1 are recorded as found, not reconciled. No later rule, current law or later tariff action is used.
Explained using the historical edition for this exam.