On April 13th, 2023 year, TUV Thüringen e.V. Certification body for systems and personnel issued Certificate for the management system according to ISO 9001:22015 and ISO 14001:2015 and ISO 45001:2018 to PPG d.o.o. Sarajevo. The proof of the conforming application with the regulation was furnished and per the certification procedure, which is certified for the company PPG d.o.o. Sarajevo. Scope is Design, consulting and supervision in the field of civil engineering; project management.