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2844.43.00.28/Californium-252 Neutron Source/Japan

Californium-252 Neutron Source from Japan

Californium-252 metal encapsulated as portable neutron source for oil well logging and radiography, under 2844.43.0028 as a compound/isotope of element 98. Meets chemically defined criteria of Chapter Notes.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• File NRC license application with training program; use double-encapsulation special form; comply with USDOT neutron emitter labeling (UN 3326)