Old people, children and other people who are not convenient to use smart phones to declare themselves can download the "offline code" after their families apply and print it out and carry it with them. The offline code has a time limit and is valid for 7 days from the date of generation.
"Sichuan Tianfu Health Link" is a two-dimensional electronic certificate for displaying personal health status in epidemic prevention and control according to the needs of epidemic prevention and control in our province. It is the basis of epidemic prevention and control inspection and unified health coding in the whole province, with one person and one yard.