How to fill in the postal code for passport application?

The steps for filling in the postal code for express delivery of a passport are as follows:

1. Confirm the province and city where you are located. You can check your province and city by using Baidu Maps or other map applications.

2. Query the corresponding postal code according to the province and city where you are located. You can use the postal code lookup website or related websites to check the postal code in your area.

3. Fill in the postal code you found in the mailing address for passport express delivery, and make sure it is filled in correctly. When filling in the mailing address, be sure to fill in the postal code in the appropriate position of the address to ensure that the mail can be accurately delivered to its destination.