The “Commercial Law” unit implements the technical assistance programme at different levels, depending on the needs expressed by the country. Technical assistance can be provided in integrated form or as stand-alone modules. The integrated form reaches the various levels of a legal framework: from policy makers to the ratification of important contracts, through knowledge of the treaties ratified in certain ministries (trade, foreign affairs, justice) and/or other relevant public institutions, trade promotion bodies such as chambers of commerce and exporting organisations, the academic community for the legal and economic world. For more information on the five training modules, click here. There are significant differences between unions and free trade zones. Both types of trading blocs have internal agreements that the parties enter into to liberalize and facilitate trade between them. The key difference between unions and free trade zones is their approach to third parties [lack of ambiguity needed]. While a customs union requires all parties to apply and maintain identical external tariffs on trade with non-parties, parties to a free trade area are not subject to such a requirement. Instead, they can set and maintain any customs regime for imports from non-parties, as they see as necessary.  In a free trade area without harmonized external tariffs, the parties will adopt a system of preferential rules of origin to eliminate the risk of trade diversion [necessary ambiguities].
 The Trade Treaties Map is a multilingual web-based trade tool that provides information on more than 270 multilateral and trade-related trade treaties. It was designed primarily to help policy makers and ISTs optimize their country`s legal framework for international trade. But LegaCarta is also a global public good of the ITC, open to all and of particular interest to lawyers, lawyers, law professors, researchers, PhD students and university students. One of LegaCarta`s objectives is to encourage countries to participate in the definition of international trade rules, rather than simply receiving such rules. To this end, the attention of national legal and economic communities should be drawn to the existence and activities of important institutions that shape the rules of international trade.