挪威船级社（Det Norske Veritas，简称DNV）成立于1864年，总部位于挪威首都奥斯陆，是一个权威，专业，独立的非赢利性基金组织。在“保护生命，财产与环境”的宗旨下，DNV为客户提供全面的风险管理和各类评估认证服务，主要涉及船级服务，认证服务，技术服务等方面。DNV在全球130个国家中设立了330多个分支机构，目前员工数目已超过6500人。DNV是世界最知名的船级社和国际权威认证机构，为各类组织提供高质量的专业服务。

从事船舶检验的机构。通常为民间组织。中国从事船舶检验的部门为政府的一个部门。世界上最早的船级社是1760年成立的英国劳氏船级社。此后航运发达的国家相继成立了船级社，并在世界主要港口设立分支机构，如美国船舶局、挪威船级社、法国船级社和日本海事协会等。船级社主要业务是对新造船舶进行技术检验，合格者给予船舶的各项安全设施并授给相应证书；根据检验业务的需要，制定相应的技术规范和标准；受本国或他国政府委托，代表其参与海事活动。有的船级社也接受陆上工程设施的检验业务。

Det Norske Veritas

Det Norske Veritas, was called DNV,to be established in 1864, the headquarters located at Norway capital Oslo, was authoritative, specialized, independent non-profit earning fund organization. In “protection life, property and environment” under the objective, DNV is the customer provides the comprehensive risk management and each kind of appraisal authentication service, mainly involves the classification of vessels service, the authentication service, technical service and so on. DNV has set up more than 330 Branch offices in the global 130 countries, at present the staff number has surpassed 6500 people. DNV is the world most well-known classification society and the international authority authenticates the organization, provides the high grade professional service for each kind of organization.

Usually the Civil society organization is engaged in the organization which the ships examine. China is engaged in the department which the ships examine for a government's department. In the world the earliest classification society was in 1760 be established Lloyd's Register of Shipping. Hereafter the shipping developed country has established the classification society one after another, and sets up the Branch office in the world major port, like ABS,DNV,BV,NKand so on. The classification society primary service is carries on the technical examination to the reforger ships, the passer gives ships' each item of safety equipment and gives to the corresponding certificate; According to the examination service's need, formulates the corresponding technology standard and the standard; Entrust our country or other country government, to represent its participation maritime affair activity. Some classification societies also accept on land project facility the examination service.