Do I need nucleic acid testing from Xining to Golmud by train now?

Now Xining takes a train to Golmud for nucleic acid testing. According to the relevant public information, Xining epidemic prevention regulations require that people who really need to leave Ningxia must hold a negative certificate of 48-hour nucleic acid test, a health code and a green code of travel code. Therefore, the train from Xining to Golmud needs nucleic acid testing.