Can I go to work in wuqing district with a health certificate issued by Tianjin Xiqing District?

As far as I know, Tianjin's health certificate is universal in the whole city, so the health certificate you applied for in Xiqing District of Tianjin can be used in other areas, including working in wuqing district. But whether it is feasible or not depends on the relevant local regulations and the requirements of the employer. It is suggested that you confirm the scope of application of the health certificate with the employer or relevant departments before going to work in wuqing district to avoid unnecessary troubles.