CBP CROSS rulings for HS 2933.90
1 rulings ·newest issued 1993-06-15 ·window 2026-10-12
Every US Customs (CROSS) classification ruling in our current extract that cites HS subheading 2933.90, listed newest first. Classification practice for one product family often turns on wording applied to sibling headings — compare adjacent rulings before concluding.
| Ruling | Issued | Subject | Status |
|---|---|---|---|
| HQ 886583 | 1993-06-15 | The tariff classification of CBZ-D-proline (CAS# 6404-31-7)from Japan. | Active |
Primary sources: CBP CROSS. Each ruling page carries its own retrieval timestamp and link back to the original notice.