Cesium-137 Sealed Source from China
Cesium-137 sealed irradiators used for blood irradiation and calibration standards in nuclear medicine. Falls under HTS 2844.43.00.21 as a compound of the listed radioactive isotope cesium-137. Meets Chapter 28 definition for radioactive isotopes and their compounds.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Submit IAEA INF/CIRC/337 notification for international shipments plus NRC advance notice
• Use certified Type A or B packages with double containment for chloride or sulfate forms
• Maintain chain-of-custody records from manufacturer to verify no prohibited admixtures