Legal basis: Article 2 of the Management System of Leave and Termination of Leave adheres to the principles of leave in advance, leave afterwards, graded responsibility, strict management and examination and approval according to the prescribed authority and procedures. Leave should be mainly in written form. If it is too late to ask for leave in writing in special emergencies, you should call, send a text message or entrust someone else to ask for leave first, and then I will go through the formalities of asking for leave. After the holiday expires, it is necessary to cancel the leave to the leaders in charge and the office in time.