1. The six-digit address code indicates the administrative division code of the county-level administrative district where the coded subject's permanent household is located; 2. The eight-digit date-of-birth code indicates the coded subject's year, month, and day of birth; 3. Of the three-digit sequential code, the odd digits are assigned to males and the even digits are assigned to females; and 4. A one-digit check code is used to test the ID's correctness. The validity period of a resident's ID card varies according to age group, with adults usually holding an ID card valid for 10 or 20 years. To apply for an ID card, you need to provide a resident's hukou book and have your portrait and fingerprints taken at the police station where your hukou is located, and then pay the cost of the book and receive your ID card at the specified time.
The information composition of the ID card:
1, ID card number structure: the ID card number consists of 18 digits, the first 6 digits are the administrative division code, the next 8 digits are the date-of-birth code, then the next 3 digits are the sequence code, and the last digit is the checking code;
2, the name information: the name on the ID card is the bearer's legal name, which is usually in Chinese characters. Ethnic minorities may contain minority characters;
3, other information: the ID card also contains personal information such as gender, ethnicity, household address, etc.
4, ID card chip: the second-generation ID card has a built-in chip, which stores the holder's photo and fingerprints and other biological information.
In summary, the adult ID card is a legal ID containing six address codes, eight date-of-birth codes, three gender sequential codes and one check code, and is valid for 10 or 20 years. The process of applying for the ID card involves submitting a hukou (household registration) booklet, collecting bio-information at the police station in the place of hukou registration, and paying the appropriate fee to receive it within a specified period of time.
Legal basis:
The Law of the People's Republic of China on Resident Identity Cards
Article 3
The items registered on a resident's identity card include: name, gender, ethnicity, date of birth, address at the place where the person's usual household registration is located, citizenship ID number, the person's own photo, fingerprint information, the validity period of the document, and the authority for issuance. Citizen identification number is a unique, lifelong identity code for each citizen, and is compiled by the public security authorities in accordance with the national standard for citizen identification numbers. Citizens applying for the receipt, replacement or replacement of identity cards shall be registered with fingerprint information.