Where do college students send letters to the community when they join the Party?

The letter of political examination of the village committee (the letter of joining the Party) is a letter of inquiry of political examination, and the political examination of college students joining the Party sends a letter to the community village committee. Letter to join the Party means that if it is not convenient to directly investigate the important relationship of the people who intend to join the Party in other places, a letter is sent in the name of the organization, requesting the relevant organizations of the other party to assist in the investigation and issue the investigation results.