Which form is used to request leave from duty?

The form used to request leave from duty is DA 31. This is the official document required for personnel in the military to apply for leave. The DA 31 provides a formal method to record the leave request, including the dates of leave, type of leave (such as regular leave or emergency leave), and justification for the absence. This form ensures that proper chain of command procedures are followed and that operational requirements are taken into account when granting leave.

Other forms listed serve different purposes; for instance, DA 4697 is used for accident reporting, DA 67-9 is associated with officer evaluations, and DD 1351-2 is related to travel vouchers for reimbursement of travel expenses. Therefore, while these forms are important in their respective areas, they do not function as the leave request form that the DA 31 provides.