受理机构邮寄送达的，必须保留邮寄凭证。

For service by post, an accepting institution must keep the postal certificate.

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通过邮寄送达的，一方按照本合同记载的地址投邮后经过七日，视为送达另一方。

Provided that if sent by mail, on and after seven days of mail as per the address which stipulated in this contract shall be deemed have been served.

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第二十六条受理机构无法直接送达或者邮寄送达行政许可决定的，可以公告送达。

Article 26 If an administrative licensing decision cannot not be served directly or by post by an accepting institution, it shall be served by public announcement.

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