What are health code and size two?

The two codes refer to health code and travel code. 1. health code: health code is based on real data and can be generated by citizens or people who have returned to work through online declaration and background audit. 2. Travel code: refers to the two-dimensional code for understanding and mastering personal travel during the epidemic.

Health code:

200211The National Development and Reform Commission, in conjunction with various departments, issued the Opinions on Doing a Good Job in 20021Spring Festival travel rush and Strengthening the Prevention and Control of Spring Festival travel rush's Emergency Transportation, demanding that "health code" be popularized nationwide during the emergency transportation in Spring Festival travel rush to avoid gathering due to scanning code. National Mutual Recognition of Health Codes during 20021Spring Festival travel rush. Adding "code" to "code" is an example, which is quite special. If there are real reasons for not being able to recognize each other with other regions for the time being, it shall be reported in advance.