Californium-252 Neutron Source from Germany
Californium-252 sealed sources emit neutrons for industrial applications like moisture gauging and reactor startup. Classified under HTS 2844.43.00.21 as it contains the specifically listed isotope californium-252. These are chemically defined radioactive isotopes per Chapter 28 notes.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• File NRC Form 741 at least 7 days before import; high specific activity requires Type B packaging
• Include dosimetry reports and decay chain analysis in import documentation
• Confirm exemption from other chapters via specific activity >74 Bq/g documentation