The master should call the coastal state for allowance to use chemical agents for response to pollution on the sea 使用化学药剂处理海上污染时，船长应先获得沿岸国家的批准。
2.
Marine traffic security management is one of the most important parts of marine traffic engineering . it is defined as the management on vessels and marine area for avoiding pollution and the damage of vessels and cargoes 水域交通安全管理是海上交通工程学中的一项重要内容，是指为防止船舶和货物的损害以及防止海上污染而对指定水域内船舶行为的总体和相关水域环境所实施的管理。
