The article presents the analysis of the changes of derivates market structure in Poland before and after the implementation of regulations on OTC derivatives market, which was imposed in EU by EMIR (European Market Infrastructure Regulations). That was implemented by EU Parliament and EU Council ordinance No. 648/2012 dated on the 4th of July 2012, on the derivatives being the subjects of trade outside of the regulated market, central counterparties and transactions repository. The article describes the origin of the world financial crisis in 2008 as well as regulations which were published 2010-2012 in USA and EU aiming to reduce the possibility of critical situations occurrence in following years. Furthermore, Poland’s most popular OTC d...