2844.42Subheading
Radioactive elements; actinium-225, 227, californium-253, curium-240, 241, 242, 243, 244, einsteinium-253, 254, gadolinium-148, polonium-208, 209, 210, radium-223, uranium-230 or 232, compounds; alloys, dispersions, ceramic products and mixtures
Section VI — Products of the chemical or allied industries
This is a 6-digit subheading — the most specific level of the international HS. Country tariff schedules extend it further; the US tariff lines (HTS) below refine it to 8–10 digits for duty purposes.
US tariff lines for this subheading are not in the bundled starter dataset yet — the full HTS schedule is coming soon. You can still search by code in the tariff simulator.