The full text of this ruling lives on CBP’s site. Read 089430 on rulings.cbp.gov › We store full decision text for the regime-relevant slice (rulings citing an IEEPA / 301 / 232 overlay); this one isn’t in it.
Source: CBP Customs Rulings Online Search System (CROSS, rulings.cbp.gov). A ruling is CBP’s binding answer to an importer’s classification question — precedent for similar goods, not a determination about yours; a licensed customs broker confirms the correct classification.
HQ 089430 — Microcuvettes; Blood Diagnostic Cartridges; GRI 3(b); Composite Diagnostic or Laboratory Reagents of Heading 3822; NYRL 862928 of May 17, 1991.