Treponema pallidum Antigen Test from Canada
TPPA (Treponema pallidum particle agglutination) reagents containing immobilized T. pallidum antigens on gelatin particles. Confirmatory syphilis serology for clinical laboratories. HTS 3822.19.0030 classification for spirochete antigen diagnostic reagents.
Duty Rate — Canada → United States
60%
Rate breakdown
9903.03.1450%Articles the product of Canada as provided in subdivision (b)(3) of U.S. note 51 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include RPR/VDRL confirmatory correlation studies and specificity data
• Document gelatin particle backing uniformity and stability
• Provide CDC syphilis staging interpretation guidelines