Who is responsible for ensuring COs and DAOs are up-to-date on their DTS annual training?

The responsibility for ensuring that Commanding Officers (COs) and Designated Approving Officials (DAOs) are up-to-date on their Defense Travel System (DTS) annual training typically falls to the organization's leadership, specifically the designated training officer or administrative staff. They are tasked with monitoring compliance and facilitating training sessions. Additionally, the CO or DAO themselves should take initiative to stay informed about training requirements and schedules.