In order to successfully initiate and maintain business relations in the Islamic Republic of Iran, it is extremely important to know the country's regulatory framework, its customs and socio-cultural context; in particular, the Iranian legal system combines elements of Islamic law with elements of the so-called “civil law”. This section provides a clear and complete overview of current legislation on commercial and corporate matters, as well as references to civil law, limited to aspects of social life that may concern foreign operators in personal relationships with their local interlocutors. The section also offers regulatory updates and practical indications for operating in full compliance with Iranian legislation, with particular regard to problems related to the management of commercial negotiations.