In particular, people from the green zone need to be positive for SARS-CoV-2 by PCR method or rapid antigen test within 72 hours to enter Thai Nguyen. 

The people without positive test results have to test rapid antigen at the COVID-19 checkpoint and pay the fee themselves. 

The yellow, orange, and red zones cases comply with Dispatch No.4616 of the Provincial People's Committee.  

The people on duty from green zones have to be positive with SARS-CoV-2 by PCR method or rapid antigen test within 72 hours. 

The people on duty from yellow, orange, and red zones must have their unit's dispatch and fully comply with regulations on COVID-19 prevention and control throughout the time of staying in the province.