The validity period .

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.

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!