You need to show your health code by train, because it is very important and necessary according to the national epidemic prevention requirements. In addition to the health code, you also need to take your body temperature, and your body temperature is normal before you can pass. This is a requirement for people who take bullet trains in low-risk areas. However, if people in high-risk areas take the bullet train, they must have a negative nucleic acid test certificate within 48 hours in addition to measuring their body temperature and lighting up their health code during the security check, otherwise they are not allowed to enter the station.
The yellow code is not allowed to take the bullet train for nucleic acid detection, because according to the relevant regulations on epidemic prevention and control, the health code means that the yellow code personnel cannot enter various public places such as stations, shopping malls, hotels, supermarkets, cinemas, airports, KTV, bars, and other special places such as nursing homes, schools and welfare homes.
Everyone should pay attention to self-protection when riding the bullet train, always wear masks and don't take them off. This is also responsible for themselves and others.