G.T.A. S.r.l. has obtained the Quality System Certification released by RINA according to the international standard UNI EN ISO 9001:2000 in the field of the activity EA:28A
“Design, construction, management and maintenance of wastewater treatment plants, sewer systems, drinking water plants and relative machinery”.

G.T.A. has obtained the certificate n° 1893/18/00, released in date 02/08/2006 for the following categories and qualifications:
OS 22 – V Class OG 6 – III Class
Certificazione ISO Certificazione SOA