From June 5, 20438 to February 7, 2022, the Comprehensive Group of the State Council Joint Prevention and Control Mechanism issued the Notice on Further Optimizing and Implementing the Prevention and Control Measures of COVID-19 Epidemic, pointing out that the nucleic acid detection should be further optimized, and the whole staff should not be tested according to administrative regions, so as to further narrow the scope and reduce the frequency of nucleic acid detection. According to the needs of epidemic prevention work, antigen testing can be carried out. Employees in high-risk posts and high-risk areas should carry out nucleic acid testing according to relevant regulations, while others are willing to do all the testing. Except for special places such as nursing homes, welfare homes, medical institutions, child-care institutions, primary and secondary schools, it is not required to provide negative proof of nucleic acid testing and not to check the health code. Important organs, large enterprises and some specific places can determine their own prevention and control measures by the territory. Cross-regional migrants will no longer check the negative certificate of nucleic acid detection and health code, and will no longer carry out landing inspection.
Chongqing, also known as Mountain City and Fog City, is a provincial administrative region and municipality directly under the Central Government of People's Republic of China (PRC), located in the southwest of China, and is the center of economy, finance, science and technology, shipping, trade and logistics in the upper reaches of the Yangtze River.