USDA - Foreign Agricultural Service
www.fas.usda.gov/
Export Regulations
Foreign Trade Statistics Regulations
www.census.gov/foreign-trade/regulations/regs/index.html
Export Administration Regulations
www.access.gpo.gov/bis/ear/ear_data.html
International Traffic in Arms Regulations
www.pmddtc.state.gov/itar_index.htm
Other References
Schedule B
www.census.gov/foreign-trade/schedules/b/index.html
Harmonized Tariff Schedule of the United States Annotated
www.usitc.gov/tata/hts/bychapter/index.htm
Rules of Origin - Free Trade Agreements hotdocs.usitc.gov/docs/tata/hts/bychapter/0910gntoc.htm