World Tariff Profiles 2013 — a joint publication of the WTO, the International Trade Centre (ITC) and the UN Conference on Trade and Development (UNCTAD) — provides comprehensive tariff information on all WTO members and a number of other countries where data is available. It is the only compilation of tariff information of its kind available to researchers and negotiators. The publication summarizes the market access that each country offers to imports as well as the market access conditions faced by its products in its major export markets. The profiles show both the maximum tariff rates that are legally “bound” in the WTO and the rates that countries actually apply. The technical annex in this year’s issue focuses on WTO members’ participation in regional trade agreements (RTAs), with complementary data provided on tariff elimination in RTAs notified under the WTO’s Transparency Mechanism.