The table shows which Flag States having authorised DNV as Recognised Organisation (RO), scope of authorisation and specific flag requirements, if any.
| Flag State | Audit authorisation | Issuance of SMC/DOC | Comments |
| Algeria | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Antigua & Barbuda | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Aruba | Yes | Interim and short term SMC and DOC by DNV. Full term certificates by Flag. | |
| Australia | No | No | |
| Bahamas | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Bahrain | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Bangladesh | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Barbados | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Belgium | Yes | Interim and short term SMC and DOC by DNV. Full term certificates by Flag. | |
| Belize | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Bermuda | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each audit. |
| Brazil | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Cambodia | No | No | |
| Canada | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Cayman Islands | No | No | |
| Chile | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| China | No | No | |
| Comoros Islands | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| Croatia | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| Cyprus | Yes | Interim and full term SMC and DOC are issued by DNV. | Authorisation to be requested by company for first (interim) certification of company and each ship. Full authorisation (audit and certify) for ships and companies already certified by DNV. |
| Denmark | Yes | Interim and full term SMC and DOC are issued by DNV. | Authorisation is not covering passenger ships. These are handled by the Flag. |
| Dominica, Commonwealth of | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Egypt | Yes | Interim and short term SMC and DOC by DNV. Full term certificates by Flag. | |
| Estonia | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each audit. |
| Ethiopia | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Faroe Islands | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Fiji | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Finland | Case by case | Interim and short term SMC and DOC by DNV. Full term certificates by Flag. | Authorisation required for company and covers all ships operated by this company. Company to request Flag to authorise DNV. Authorisation is not covering passenger ships. |
| France | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each audit. |
| Gambia | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| Georgia | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Germany | Yes | Interim and short term SMC and DOC by DNV. Full term certificates by Flag. | |
| Ghana | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Gibraltar | Case by case | Interim and short term SMC by DNV. Full term SMC by Flag. | Company to request Flag to authorise DNV for each ship. No authorisation will be given for DOC. |
| Greece | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Honduras | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Hong Kong | Yes | Interim and full term SMC and DOC are issued by DNV. | Authorisation is not covering passenger ships. DNV needs to obtain a written confirmation before issuing a DOC to a Company which is new to the Flag. |
| Iceland | Yes | Interim and full term SMC and DOC are issued by DNV. | Company to request Flag to authorise DNV for passenger ships. |
| India | No | No | |
| Indonesia | No | No | |
| Iran | Yes | Interim and full term SMC are issued by DNV. | DOCs will be issued by Flag upon audit report from DNV. |
| Ireland | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Isle of Man | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each audit. |
| Italy | No | No | |
| Jamaica | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Jordan | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| Kuwait | Case by case | Interim and full term SMC and DOC are issued by DNV upon received authorisation. | Case by case authorisation required for first (interim/initial ) audit and certificate, and for renewal audit. |
| Latvia | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Liberia | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Libya | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| Lithuania | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| Luxembourg | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Madeira | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Malaysia | Case by case | When authorised, interim and full term SMC and DOC are issued by DNV. | Authorisation required for first certification of each vessel and company. Company to request Flag to authorise DNV for first certification. |
| Malta | Case by case | When authorised, interim and full term SMC and DOC are issued by DNV. | Authorisation required for first certification of each vessel and company. Company to request Flag to authorise DNV for first certification. |
| Marshall Islands | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Mauritius | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Mexico | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Morocco | Case by case | As pr case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| Myanmar (ex. Burma) | No | No | |
| Namibia | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Netherlands | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Netherlands Antilles | Yes | Interim and short term SMC and DOC by DNV. Full term by Flag. | |
| New Zealand | No | No | |
| Nigeria | Yes | Interim and short term SMC and DOC by DNV. Full term by Flag. | |
| Norway | Yes | Interim and full term SMC and DOC are issued by DNV. | NIS: Full authorisation |
| Panama | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Papua New Guinea | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Philippines | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Portugal | No | No | |
| Qatar | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Romania | No | No | |
| Russia | Case by case | As pr. case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| Samoa | Case by case | As pr. case by case authorisation. | Company to request Flag to authorise DNV for each ship/company. |
| Saudi Arabia | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Seychelles | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Singapore | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Slovakia | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Sri Lanka | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| St.Vincent and the Grenadines | Yes | Interim and short term SMC by DNV. | |
| Switzerland | Case by case | When authorised for the company, interim and full term SMC and DOC are issued by DNV. | Authorisation required for a company and will be valid for all company ships. Once authorised, no further authorisation is required. |
| Sweden | No | No | |
| Thailand | Case by case | As pr. authorisation letter. | Company to request Flag to authorise DNV for each ship/company. |
| Tonga | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Trinidad and Tobago | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Tunisia | Case by case | As pr. authorisation letter. | Company to request Flag to authorise DNV for each ship/company. |
| Turkey | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Tuvalu | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Ukraine | No | No | |
| United Arab Emirates | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| United Kingdom | No | No | |
| USA | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Vanuatu | Yes | Interim and full term SMC and DOC are issued by DNV. | |
| Venezuela | No | No | |
| Vietnam | Case by case | When authorised, interim and full term SMC and DOC are issued by DNV. | Authorisation required for first certification of each vessel and company. Company to request Flag to authorise DNV for first certification. |
| Yemen | Yes | Interim and full term SMC and DOC are issued by DNV. |