This page contains several links to tariff data or general trade data links.
Tariffs
EU Harmonized Tariff Schedule 2002
The ITC's page on European tariffs by chapter
Canada Tariffs
Canadian Tariffs by HTS code
USITC Dataweb
USITC Interactive Tariff and Trade DataWeb
USITC Tariffs 2004
US Tariffs 2003,
2002,
2001,
2000,
1999
US tariffs and trade date for specific products 1999 to 2003
Nafta tariffs
NAFTA provisions for tariffs, quantitative restrictions, safeguards, rules of origin, and sanitary and phytosanitary measures
Mexico staged tariffs
US NAFTA for Mexico Staged Tariff Reductions by Product 1999-2008
US Staged Tariffs
US Staged Tariff Reductions by Product 1999-2004
Future tariff reduction
Look up for future US tariffs under different FTAs
2004 tariffs by chapter
Harmonized Tariff Schedule of the United States (2003)
Trade and business
Globaledge
A source for global business knowledge
Canada Trade
Canada Trade by product (HTS code)
World Tariffs
General Agriculture
EU AGRAR
EU page on agriculture