The United States has high requirements for teacher qualification certificates, and each state is different. If you want to teach in a public school, you need certain academic qualifications and educational credits, and then you need the corresponding language proficiency certificate. For example, in domestic examinations, generally, American-certified certificates, such as IPA international registered Chinese teacher certificate, are recognized by the State Council in the United States and certified by the China Embassy in the United States. For example, if you want to teach at the Confucius Institute, it is very important for public schools and volunteers to have an international Chinese teacher certificate issued by Hanban, so it is very important to engage in private Chinese.