"48-hour nucleic acid test negative certificate" means that the nucleic acid test report is valid within 48 hours. If it exceeds 48 hours, it needs to be re-tested.
The masses should pay attention to and abide by the epidemic prevention requirements at the starting point, transfer station and destination. Personal protection should be done at all times during the journey. Wear a mask, wash your hands frequently and get plenty of ventilation. After returning home, you should reduce gathering and mobility, seek medical attention and report symptoms in time.
Self-driving personnel should cooperate with the epidemic prevention and control inspection, and abide by the provisions of code scanning registration and temperature measurement when staying at stations such as expressway service areas to reduce the stay time. People who take public transport should always pay attention to the epidemic prevention and control requirements of the departure place and destination before going out, and complete nucleic acid testing when necessary to ensure that the health code and travel code status meet the travel requirements.