Under the open conference system of U.S.A., Ocean Shipping Reform Act(OSRA) of 1998 has established the antitrust exemption system of liner conference agreement, service contract system and legal responsibility system of liner conference, which structures the system of the regulating the liner conference. 在美国开放式的班轮公会体制下,《1998年航运改革法》通过设立班轮公会协议反垄断豁免制度、服务合同制度和班轮公会的法律责任制度构建了对班轮公会的管制体系。