Is it necessary to use Putonghua for the qualification examination of Ziyuan County?

The qualification examination of Ziyuan County must use the Putonghua certificate. The Putonghua Proficiency Test Certificate is a Putonghua Proficiency Test Certificate recognized by Chinese mainland, which can prove that the holder has certain Putonghua language ability. Therefore, a Putonghua certificate may be necessary in some occasions that need to prove the language ability of Putonghua, such as recruitment and examination.