Promethium-147 Battery from Mexico
Promethium-147 used in betavoltaic nuclear batteries for long-life power. An 'other' radioactive element per HTS 2844.43.0050.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Classify as device only if radiation < threshold; else as radioactive material
• Comply with ITAR if for space/military applications
• Test for specific activity exceeding 74 Bq/g limit