O – PUBLIC ADMINISTRATION AND DEFENCE; COMPULSORY SOCIAL SECURITY (8411 – 8430 codes, click to expand full NACE code list)
| 8411 | General public administration activities |
| 8412 | Regulation of the activities of providing health care, education, cultural services and other social services, excluding social security |
| 8413 | Regulation of and contribution to more efficient operation of businesses |
| 8421 | Foreign affairs |
| 8422 | Defence activities |
| 8423 | Justice and judicial activities |
| 8424 | Public order and safety activities |
| 8425 | Fire service activities |
| 8430 | Compulsory social security activities |




