ROPI is certified to ELOT EN ISO 9001:2015 for the Design, Construction and Maintenance of Industrial Equipment & Pressure Equipment (PED 97/23/EC). In addition, ROPI is certified to EN 1090-2 for Design Construction and Erection of Steel structures Class EXE2, to EN 3834-2 for Welding of structural components, Piping and Pressure Equipment , and its welders are certified per ASME IX. ROPI is registered in the Register of Contractors of the Ministry of Infrastructure, Transport and Networks of Greece with a first degree Licence for INDUSTRIAL-ENERGY and ELECTROMECHANICAL projects as well as in the Special Register for Ship Conversion, Repair and Maintenance of the DG Development of the Region of Central Macedonia. The CALIBRATION LABORATORY of ROPI is accredited dy Hellenic Accreditation System (ESYD) for Calibration of Larga Petroleum Tanks . (For the proper quality controls of the projects,ROPI has developed a close cooperation with international Third party Inspection Bureaus such as LLoyd's and MT.