According to the "Regulations on Determining the Ethnic Composition of China Citizens" formulated by the State Ethnic Affairs Commission and other relevant departments,

Individuals whose ethnic composition meets one of the following conditions can apply for changing their ethnic composition: at least 18 years of age, parents have different ethnic composition, and parents request to change from one parent to the other; 18 years old but under the 20th anniversary, the original basis was changed from one parent to the other because the ethnic composition of both parents is different; At the age of 20, my parents are both ethnic minorities. Because of going out to work and other reasons, the ethnic composition was wrongly filled as Han nationality, and now I am willing to rely on my father or mother.