Americium-241 Oxide Source Material from China
Americium-241 oxide (Am-241 O2) is used in neutron sources, smoke detectors, and industrial gauges as a chemically defined compound of transuranic element americium (atomic no. 95). It qualifies for HTS 2844.43.00 as a compound of radioactive elements with atomic number >84.
Duty Rate — China → United States
25%
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
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Include specific activity documentation (typically ~4 Ci/g for Am-241); obtain NRC specific license
• Comply with 49 CFR 173.435 for excepted packages if ≤0.5 Ci total activity
• Verify exemption from 2844 if activity <74 Bq/g; common error is overlooking daughter nuclides