Airmail Lightweight Envelopes from Canada
International airmail envelopes made from 16 lb lightweight blue paper, size C6 (114 x 162 mm) with red/green diamond pattern border. Border considered minor per chapter notes, classifying as plain envelopes under HTS 4817.10.00.00. Optimized for overseas postage weight limits.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Prove pattern is subsidiary to mailing function with postal service certifications to avoid Chapter 49
• Confirm paper weight under 60 g/m² aligns with lightweight uncoated paper standards
• Include universal postal union markings in documentation for expedited clearance