Pre-school education can be allocated when it expires. According to relevant public information, it was released on April 27, 2022. The service period of grass-roots "three supports and one support" (teaching, supporting agriculture, supporting medicine and helping the poor) personnel is 2 years, and the service time is calculated from September of the recruitment year. According to the policy, the "three supports and one support" staff who have served for two years and passed the examination can be placed in grass-roots schools and turned into regular teachers with the approval of the county editorial board meeting. After the expiration of the service period, if they pass the examination and voluntarily stay in the service place, the service unit and the county-level human resources and social security department shall go through the employment procedures together with the relevant departments, and employ staff for the original service unit, and the probation period will no longer be implemented. At the same time, it is regarded as a person with two years of grassroots work experience, and enjoys preferential recruitment policies for civil servants and institutions according to regulations.