[Source or answer dispute] Official B: prior gap now closed

What you will learn

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

October 23, 2024 CBLE full text extracted from exam2024.pdf (exam pages 1–33 and answer key pages 34–36 in one file): question 39 with all four options (extracted text page 20).; Cover directions and references of the October 23, 2024 CBLE.; Answer key row 39 in the same file (key pages 34–36).; Original combined exam and key PDF (36 pages), cached locally. Per conflict-batch04 review.md, the CBP download returned 403 at review time and this unmodified CBP-document copy was fetched from the mirror https://www.lawcustoms.com/wp-content/uploads/2025/02/102024CBLE.pdf; recorded as found (a mirror, not independent legal authority). PDF page 1 (cover), page 20 (questions 39–40) and page 35 (key rows 32–66) rendered locally to /tmp/q39png and physically viewed by this author. Image source; excerpt is this author's transcription.; HTSUS 2024 Basic Section XVI Note 3 (Section XVI Notes 1–6, Additional U.S. Note 1 read in full), printed at the start of the Chapter 84 file. Text extracted from 2024HTSBasic-ch84.pdf (SHA-256 8f8095cbed062868b630a575ba3a0f2b55ee1f665cdd78ba9cd7af9b145af46a); PDF pages 1 and 2 (printed XVI-1, XVI-2) rendered and physically viewed.; HTSUS 2024 Basic Section XVI Note 4 and Note 5 (read for context; not relied on in the video) and Chapter 84 Notes 1, 2 and 8 (read; Note 1(f) excludes electromechanical domestic appliances of heading 8509 from Chapter 84; not used in the video).; HTSUS 2024 Basic heading 8481 text and the 8481.80 'Other appliances' hierarchy (hand-operated 8481.80.10/.30/.50, then 8481.80.90 'Other' and its suffixes).; Review PNG of HTSUS 2024 Basic printed page 84-114, physically viewed by this author; the same page was also rendered from 2024HTSBasic-ch84.pdf (PDF page 118) to /tmp/q39png and viewed. Image source; excerpt is this author's transcription.; HTSUS 2024 Basic printed page 84-30 (PDF page 34), rendered locally to /tmp/q39png and physically viewed: heading 8418 continuation with 8418.69.01 and its suffixes. Used only to show why the cooling facts matter; no verdict on option A. Image source; excerpt is this author's transcription.; Historical/current batch01 evidence review, item 2024oct-39 (status historical_core_gap_resolved_original_revalidation_limited). Report only; the primary files above were read directly.; Pipeline Codex independent review, item 2024oct-39 (continue_hold_original_revalidation_limited) and its limits. Its original-revalidation limit is answered by the cached original read for this draft; independent confirmation of that remains with the reviewer.; Old hold record for 2024oct-39 (approved false), read only and unchanged: records that the Section XVI source returned 503, the principal-function core was missing, and a partial table alone was not approved. · October 23, 2024 Customs Broker License Examination, 'CBP Publication: 3887-1124' (as printed); answer key 'October 23, 2024 Customs Broker License Exam Answer Key', 'CBP Publication: 3888-1124' (as printed). Exam reference per cover: Harmonized Tariff Schedule of the United States (2024 Basic Edition, No Supplements). Texts used: USITC 2024 Basic Chapter 84 PDF (Section XVI notes, pages XVI-1 and XVI-2; Chapter 84 notes, pages 84-1 and 84-2; heading 8418 table, page 84-30; heading 8481 table, pages 84-110 to 84-114). No supplement, Title 19 CFR provision, later tariff revision (including 2026 Revision 21) or current law is used; no rate is applied and no duty is computed.
Explained using the historical edition for this exam.