CGH certificates:
- UDT_PL certificate
- WDT certificate
- TDT certificate
- TUV NORD AD2000 HP0_PL certificate
- TUV NORD DIN EN ISO 3834-2 certificate for load-bearing steel structures
- TUV NORD EN ISO 3834-2_AD2000_Dyrektywa 97_23_WE certificate
- TUV NORD HH-D1054 certificate
- TUV NORD HH-D5033 certificate
- TUV NORD Module H1 certificate
- TUV NORD certificate for EN ISO 9001 Management System
- PZH certificate
- CAA certificate – Romania
- Type approval – tanks 1m3-30m3, single chamber, 5m3-30m3 dual chamber_ZT 6_2008 as amended
- Type approval – tanks 1m3-50m3, aboveground, ZT 10_2010 as amended
- Type approval – tanks 1m3-120m3, underground and aboveground, ZT 57_2015_PLT 1557
- Type approval – tanks 4m3-70m3, underground, ZT 48_2010 as amended