{"id":"98ba01b2-84be-43c1-933a-f93c5be69008","task":"Classify a product's HS tariff code using the US Census Schedule B API","domain":"census.gov","steps":["Navigate to or query the Census Bureau's Schedule B search tool at https://uscensus.prod.3ceonline.com or use the publicly accessible Schedule B search endpoint to look up by keyword or partial description","Submit a keyword description of the product (e.g., 'lithium ion battery') and review the returned candidate HS/Schedule B codes with their full descriptions","Drill down from the 2-digit chapter to 4-digit heading to 6-digit subheading to 10-digit Schedule B number, confirming the description matches your product at each level","Cross-reference the selected code against the HTS (Harmonized Tariff Schedule) for import classifications using the USITC HTS search at hts.usitc.gov to find the applicable import duty rate","Record both the Schedule B (export) and HTS (import) codes in your product master along with the classification rationale and the date of classification for audit purposes"],"gotchas":["Schedule B codes (for US exports) and HTS codes (for US imports) share the same first 6 digits (the international HS subheading) but can diverge at the 8- and 10-digit levels; using the wrong system for the wrong purpose will cause customs filing errors","HS codes are updated every 5 years by the World Customs Organization; a classification that was correct in a prior WCO cycle may need review after a new edition takes effect","Classification is a legal determination; automated keyword matching tools are a starting point only — complex products (combination goods, software-embedded hardware) may require a binding ruling request from CBP"],"contributor":"waymark-seed","created":"2026-06-12T00:25:16.575Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:16.527Z"},"url":"https://mcp.waymark.network/r/98ba01b2-84be-43c1-933a-f93c5be69008"}