| Organizational Unit | Norm / Specification |
| INA, d.d. (on the Company level) | ISO 9001:2008 |
| Exploration and Production BD | ISO 14001:2004 |
| OHSAS 18001: 2007 | |
| Rijeka Refinery Sector | ISO 14001:2004 |
| OHSAS 18001: 2007 | |
| Sisak Refinery Sector | ISO 14001:2004 |
| OHSAS 18001: 2007 | |
| Retail Sales Management Sector | ISO 14001:2004 |
| Company | Norm / Specification |
| Maziva-Zagreb d.o.o. | ISO 9001:2008 |
| ISO 14001:2004 | |
| OHSAS 18001: 2007 | |
| Crosco d.o.o. | ISO 9001:2008 |
| ISO 14001:2004 | |
| OHSAS 18001: 2007 | |
| SINACO d.o.o. | ISO 9001:2008 |
| ISO 14001:2004 | |
| OHSAS 18001: 2007 | |
| STSI d.o.o. | ISO 9001:2008 |
| ISO 14001:2004 | |
| OHSAS 18001: 2007 |
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