HTS Resolution Engine
Per-line tariff determination
Resolve the applicable Section 232, Section 122, Section 301, and historical IEEPA treatment for a specific tariff line. The engine tests origin and entry-date conditions, applies displacement and stacking logic, and returns the controlling source record.
Entry resolution
Resolve the live tariff stack
Use one HTS line, one origin, and one entry date to determine the controlling authority, additive overlays, displaced programs, and any historical IEEPA refund context.