[Source or answer dispute] Source or answer dispute: the April 2026 solenoid air-suspension valve, the official 8481.80.9005 answer, and the fluid-power fact the question does not state

What you will learn

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

April 2026 Customs Broker License Examination, question 33 stem and options; cover reference list (historical original; stem excerpt only shown, options not displayed); April 2026 CBLE answer key, line for question 33 (historical official key); Combined local excerpt of the complete original question 33 (all four options) and official key line; HTSUS Chapter 84 Subheading Note 3 (printed p. 84-3); heading 8481; subheading 8481.20 statistical breakdown (printed p. 84-111); 8481.80.90 suffix 05 'Solenoid valves' (printed p. 84-115); Section XVI notes read in full in the same file; CBP New York ruling N346814 (ExiInta block-and-bleed valve arrangement) — distinguished as materially different merchandise; not relied on for the exam item; Pipeline Codex independent primary-source review, item 2026apr-33 (conclusion conditions_missing_hold); First-round conflict review, item 2026apr-33 (retain source hold; do not alter historical key) · April 22, 2026 Customs Broker License Examination, CBP Publication 5559-0526 (as printed on the exam cover); April 2026 answer key printed as CBP Publication 5550-0526 (number recorded exactly as printed; the two publication numbers differ on the documents and are not reconciled here). Exam reference for classification: Harmonized Tariff Schedule of the United States (2025 Basic Edition, No Supplements). HTS text used: USITC 2025HTSBasic Chapter 84 (Section XVI notes, Chapter 84 notes and subheading notes, heading 8481), SHA-256 5d5456c2e7a45ca9e443160db7d4d6c5a0d380ab86c7429d9401488251e59cdb. No later HTS revision, no current duty rates and no Chapter 99 measures are used.
Explained using the historical edition for this exam.