U.S. Customs Regulations: https://www.ecfr.gov/cgi-bin/text-idx?SID=9fa556a1d226d6e44d2fc57d3289dd01&mc=true&tpl=/ecfrbrowse/Title19/19tab_02.tpl
U.S. Harmonized Tariff Schedule (USHTS): https://hts.usitc.gov/current
Customs Rulings Online Search System (CROSS): https://rulings.cbp.gov/home
Rules of Origin Facilitator: https://findrulesoforigin.org
Federal Trade Regulations: https://www.ecfr.gov/cgi-bin/text-idx?SID=33d64b34a7f1d464e54ebf5b15c917fd&mc=true&tpl=/ecfrbrowse/Title15/15cfr30_main_02.tpl
Schedule B: https://www.census.gov/foreign-trade/schedules/b/index.html
Export Administration Regulations: https://www.ecfr.gov/cgi-bin/text-idx?SID=9fa556a1d226d6e44d2fc57d3289dd01&mc=true&tpl=/ecfrbrowse/Title15/15CVIIsubchapC.tpl
Alternate Export Administration Regulations: https://www.bis.doc.gov/index.php/regulations/export-administration-regulations-ear
Bureau of Industry and Security Export Violations: https://efoia.bis.doc.gov/index.php/electronic-foia/index-of-documents/7-electronic-foia/227-export-violations
International Traffic in Arms Regulations: https://www.ecfr.gov/cgi-bin/text-idx?SID=897cfc9bf788774b796710a31313e3fb&mc=true&tpl=/ecfrbrowse/Title22/22CIsubchapM.tpl
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