The red code generally turns green, and the fastest code is 14 days. Generally speaking, people with health code red team need to implement centralized or home isolation 14 days and continue to apply for health punching 14 days. If there is no exception, they can turn to the green code. However, if it is misjudged as red team, you need to submit a complaint. If it meets the requirements for applying for code change, it will be processed in almost 24 hours; If the code is not green after three days, you can call the staff to handle it.