Preferential trade arrangements (PTAs)

This is the term used in the World trade Organization (WTO) for trade preferences, such as lower or zero tariffs, which a member may offer to a trade partner unilaterally. These include the Generalized System of Preferences schemes, under which developed countries grant preferential tariffs to imports from developing countries. They also include non-reciprocal preferential schemes granted through a waiver by the General Council, meaning the member has been exempted from applying the most favoured nation (MFN) principle.