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USA
UK (NI)
Canada
Australia
General Rules of interpretation
https://hts.usitc.gov/
https://www.trade-tariff.service.gov.uk/xi/sections
https://www.cbsa-asfc.gc.ca/.../2021/html/tblmod-2-eng.html
https://www.abf.gov.au/importing.../tariff-classification
https://www.cbsa-asfc.gc.ca/trade-commerce/tariff-tarif/2021/html/rules-regles-3-eng.html