In 2014, to create a unique organization for syndicates of occupational health and safety experts in Tehran province, the main members of the BD of these syndicates (Shahriyar & Shahre Ghodse, Varamin, Pishva & Qarchak, Malard, Baharestan& Robat Karim and the East of Tehran) decided to accrete.On 22 June 2014, after doing the legal process, the ordinary assembly was held. In this meeting, the members elected the board of directors and the inspectors.The syndicate hopes to improve the worker’s situation in every industrial and construction yard of Tehran province. This is accessible with the help of fellows.