What does 2011dec30 mean in the passport?

That is to say, it is valid until December 30, 2011. Dec is the English abbreviation of December.

The passport is valid for 10 years for adults and 5 years for minors under 16 years old.

There are two types of passports, one is a public passport and the other is a private passport. Except for official inspections by civil servants in government agencies, the passports generally issued are collectively called private passports. It is travel abroad, labor service, study abroad, inspection, etc. The procedure for applying for a passport is very simple. Take your household registration book and ID card to the exit and entry administration department of the local public security bureau (the police station does not accept passports). They will ask you to take a photo, a 2-inch color passport photo. Although the public security bureau has formulated Local photos are more expensive, but you should try your best to take photos in the place specified by them, so that they do not conform to the format they require. Then they will give you a form, fill it out truthfully, and then pay the fee. Generally, you have to go to the designated bank to pay the fee. 200 yuan, and then just go home and wait. The passport application cycle here in Shandong is 10 working days. The provincial department will send the passport directly to the mailing address you wrote through express mail. The postage is payable. It seems to be about 25 yuan. A passport is now like an ID card. It is very simple to apply for and is valid for 10 years. The most troublesome thing about going abroad is applying for a visa, which is different in each country.