Legal basis: People's Republic of China (PRC) Express Service and China Postal Industry Standard have the following requirements: 1. The courier service personnel shall meet the following requirements when signing for the courier: when delivering the courier to the recipient, they are obliged to inform the recipient to receive and send the courier in person; When the recipient is unable to sign in person, he can communicate with the recipient (sender) and use the collection method after permission. The courier service personnel should also inform the collector of the collection responsibility; If it is otherwise agreed with the sender or the recipient, such agreement shall prevail. After acceptance without objection, the inspector shall confirm receipt. Refuse to sign, the inspector shall indicate the reason and time of refusal on the express waybill and other valid documents, and sign it.