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
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
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
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