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ISO 9001
Quality management system according to ISO 9001: 2015.

Quality Management System in Vodoopskrba i odvodnja, after an external independent audit carried out on 12th May 2005 has been positively assessed and Vodoopskrba i odvodnja has been awarded a certificate confirming compliance with ISO 9001: 2000. Since then, twenty external independent audits and five recertification schemes have been conducted (2008, 2011, 2014., 2017 and 2020.).