Does Yitong Manchu Autonomous County Health Bureau handle the one-child certificate?

Yes According to the official website, Yitong Manchu Autonomous County People's Government and Yitong Manchu Autonomous County Health Bureau can apply for the one-child certificate. According to Article 31 of the Population and Family Planning Law of the People's Republic of China, during the period when the state encourages a couple to have one child, the state will issue a certificate of honor to the parents of the only child.