收养人一方因故不能到场的，应出具书面委托书。
Given one party could not present on the scene due to some reasons, the written Letter of Entrustment shall be submitted.
授权证明应按书面委托书的格式提交，并应附于投标书中。
Proof of authorization shall be furnished in the form of a written Power of Attorney which shall accompany the tender.
如果申请人为非户主，还应出具其他具有完全行为能力的家庭成员共同签名的书面委托书。
If an applicant for non-heads of household, but also have full capacity to produce other family members shared their written instructions.
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