The official webpage of the National Competent Authority for Chemicals provides information on chemical substances. For example, it includes information for Directorate of Raw materials and Industrial Products, reports and guidance documents for REACH/CLP, information for transport of dangerous goods and for the application of the Seveso directive etc. Τhese informative materials are useful for everyone involved in the chemical risk assessment at the workplace (e.g. safety engineers, occupational physicians, employers and employees).
English page (limited content): http://www.gcsl.gr/index.asp?a_id=245