The Quantitative Restrictions (QR) Database provides a platform to search and retrieve information concerning trade prohibitions and other restrictions that have been notified by WTO Members. Although quantitative restrictions are generally prohibited in the WTO context, Members are allowed to introduce or maintain them as exceptions in a limited number of circumstances. These include, for example, measures which are necessary to protect human, plant and animal health or to protect public morals, measures relating to the conservation of exhaustible natural resources, and others. The QR notifications seek to provide transparency on the prohibitions and other restrictions imposed by Members on imports and exports, as well as their legal justification under WTO rules.