Signatures of all Competent Authorities involved in the present Agreement.

本协议涉及的所有税务主管当局签名。

Aliens shall not be employed in China without permission of the competent authorities of the Chinese Government.

外国人在没有取得中国政府主管部门的许可下，不得在中国就业。

Competent authorities should strengthen supervision and administration of their work in air pollution prevention.

企业主管部门应当加强对企业大气污染防治工作的监督管理。

Port areas and access roads should be provided by the competent authorities with adequate lighting and signposting and regular patrols for the protection of seafarers.

主管当局应在港口区域和进出港通道提供充分的照明和路标，并提供定期巡逻，以保护海员。

I suggest you refer this question to competent authorities.

答这个问题我建议你向有关主管部门了解。