Is Harbin allowed to go to Beijing?

Some netizens asked me that I once passed Harbin in Heilongjiang Province by train within 14 days, and the travel itinerary reminded me that I had been to Harbin. Can I still go to Beijing? The reporter called Railway 12306. The customer service staff said that at present, the railway department mainly checks the negative certificate of nucleic acid test and the green code of "Beijing Health Bao" within 48 hours, and does not check the travel code, but Harbin has additional requirements.

12306 customer service: Harbin to Beijing must be approved by the unit, the community (village) and the local county (city) headquarters, and must hold the negative certificate of nucleic acid testing twice within 48 hours (the interval is ≥24 hours), and pass by the green code of Longjiang Health Code and Beijing Health Treasure. If there are some risk level asterisks on your travel itinerary, it depends on whether there is any control in Beijing.

Beijing 12345 Municipal Service Hotline Customer Service Staff Supplement:

Beijing 12345 Customer Service: Because Harbin is displayed on your travel itinerary, it means that you have been there. If there are epidemic situations and confirmed cases in this district and county you pass, your health will be affected. /kloc-If you haven't been to high-risk areas, districts and counties where the confirmed cases are located, or districts and counties where the land border crossings are located within 0/4 days, you need to hold a negative nucleic acid test certificate within 48 hours and Beijing Health Treasure Green Code.