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8523.49.20/CD-R with Environmental Monitoring Data/Mexico

CD-R with Environmental Monitoring Data from Mexico

Write-once CD-R containing recorded air quality sensor data over time periods, classified in 8523.49.20 as other optical media for non-sound/image phenomena. Stores pollutant concentration readings and timestamps. Distinguished from sound/image reproduction media.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Retain sensor calibration certificates linking data source to phenomena for audit proof

• Use ISF filings early for data-intensive shipments to preempt CBP questions