The validity period .The validity period of a VDE-GS-Mark Approval may be prolonged on request.In case of changes in legal and /or normative requirements ,the validity period of a VDE-GS-Mark Approval may be shortened.
问题描述：
The validity period .
The validity period of a VDE-GS-Mark Approval may be prolonged on request.In case of changes in legal and /or normative requirements ,the validity period of a VDE-GS-Mark Approval may be shortened.
答
VDE-GS-Mark批准的有效期可以根据要求延长。但是如果法律和/或标准要求有所变动，VDE-GS-Mark 批准的有效期将缩短。
答
参考：
一经申请,VDE-GS商标认证可以延期.如果需要法律上或标准要求方面的更改,VDE-GS商标认证的期限可能会被缩短!