In the event that a lawyer or an agent is appointed to handle the arbitration matters, a letter of authorization shall be submitted to the arbitration commission.

委托律师和其他代理人进行仲裁活动的，应当向仲裁委员会提交授权委托书。

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You should attach to the return a copy of the relevant power of attorney or letter of authorization if this is the first time you act as agent.

假如你是首次以代理人身份代业主签署报税表，你必须把有关物业的授权书副本，随报税表提交。

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To do that the agent must obtain beforehand a certificate from the unit that delegates the authority and sign the contract in the unit's name and within the limits of authorization.

代理人必须事前取得责任代理的授权，在授权范围内以责任代理的名义签署合同。

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