Law of the People's Republic of China on Resident Identity Cards
Article 5 The validity period of resident identity cards of citizens over the age of 16 is divided into ten years, twenty years and long term. Sixteen to twenty-five years old, issued a resident identity card valid for ten years; Twenty-six to forty-five years old, issued a valid identity card for twenty years; People over 46 will be issued with long-term valid identity cards.
Citizens under the age of sixteen who voluntarily apply for a resident identity card shall be issued a resident identity card valid for five years.