美国船级社（ABS ）成立于1862年，属非政府组织，主要致力于为公共利益和客户需求服务，通过开发和验证海洋相关设施的设计、建造和操作标准，保护人命、财产和自然环境的安全。

美国船级社（ABS）的突出特点是开展了美国海军中小型战斗舰及军辅舰的检验业务。迄今为止，ABS的业务范围涉及到船舶、海洋工程、锅炉及压力容器、石油化工工业、电站动力设施、铁路与港口设施、船用设备与集装箱等检验业务，同时，还开展了围绕着ISO9000、14000、18000等方面的认证工作。到目前为止，入级船的总吨位近1亿总吨，名列世界第三位。

American Bureau of Shipping

The ABS was founded in 1862, was the Non-governmental organizations. Mainly devotes serves for the public interest and the customer demand, is related the facility through the development and the confirmation sea the design, the construction and the operation standard, protects the human life, the property and the natural environment security.

The American Classification society's prominent characteristic has developed the United States Navy middle and small scale fighting ship and the armed forces auxiliary ship's examination service. Until now, the American Classification society's business scope involves to the ships, the oceanographic engineering, the boiler and the pressure vessel, the petroleum chemical industry, power plant power facility, railroad and port facilities, shipboard equipment and container,simultaneously , but also developed was revolving ISO9000, 14000, 18000 and so on aspect authentication work. So far, enters the level ship's gross tons nearly 100,000,000 gross tons, is world third.