Which department should I consult if I have any questions about Jiangxi Jiujiang travel itinerary code?

According to the relevant data, the inquiry shows: epidemic prevention and control in emergency headquarters. The parties concerned with the line code problem in Jiujiang, Jiangxi Province may appeal to emergency headquarters for correction, and may bring relevant valid certificates to the towns (streets) where the area is located. After being verified by emergency headquarters, the county (city, district) public security department shall manage and modify it.