根据您的货船无线电安全证书规定的海区，你船只能在A 1 +A 2海区航行。
PSCO: According to the sea area restricted by your Cargo Ship Radio Safety Certificate, your vessel can exclusively operate at A1 + A2 sea area.
第四条船舶和船上有关航行安全的重要设备必须具有船舶检验部门签发的有效技术证书。
Article 4 Vessels and their major equipment relating to navigation safety must have valid technical certificates issued by vessel inspection departments.
第六十条国际航行船舶的船长，必须每隔6个月向卫生检疫机关申请一次鼠患检查，卫生检疫机关根据检查结果实施除鼠或者免予除鼠，并且分别发给除鼠证书或者免予除鼠证书。
Article 60 the captain of a ship of international voyage is required to apply to the health and quarantine organ for inspection of rat damage every 6 months.
第六十条国际航行船舶的船长，必须每隔6个月向卫生检疫机关申请一次鼠患检查，卫生检疫机关根据检查结果实施除鼠或者免予除鼠，并且分别发给除鼠证书或者免予除鼠证书。
Article 60 the captain of a ship of international voyage is required to apply to the health and quarantine organ for inspection of rat damage every 6 months.
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