This page links to background support for International Agreements, Congressional Bill Reports, and Rulings on Tariffs, Classifications, and Information on Exports. Support for International Agreements includes, where available, background documents from the Harmonized System Committee, the Scientific Sub-Committee, and the Review Sub-Committee of the World Customs Organization, and agreed-upon changes to the Harmonized System nomenclature. Congressional Bill Reports includes Commission reports on proposed legislation from prior sessions of Congress and the public may retrieve these reports as needed.