The Office of Tariff Affairs and Trade Agreements (TATA) carries out the USITC's responsibilities with respect to the Harmonized Tariff Schedule of the United States and the international Harmonized System. TATA staff also work with the Office of Industries to prepare bill reports requested by Congress pertaining to proposed tariff reductions and duty suspensions for specific products. The office provides technical advice and assistance to the Congress and the USTR and participates in Trade Policy Staff Committee activities. The office participates in the World Customs Organization, and TATA's Director chairs both the Committee for Statistical Annotation of the Tariff Schedule and the Board of Directors of the International Trade Data System (ITDS).