ATTSU's industrial boilers have several official certifications that approve their manufacture:
ASME S - certification for the production and assembly of electric boilers.
ASME U - certification authorising the manufacture of pressure vessels
NATIONAL BOARD, ASME - registration authorisation certificate
DNV, GL CERTIFICATION, ON SHIPS - certification for the production of class I and II welded boilers and pressure vessels
CE, ATTSU - CE quality system approval certificate for pressure vesselsr
ISO 9001:2015 - certification for the design, manufacture, assembly and maintenance of boilers and pressure vessels.