Which tool within DTS is commonly used for tracking travel expenditures?

The correct answer is the Reports Module. This tool is integral for tracking travel expenditures within the Defense Travel System (DTS). The Reports Module allows users to generate various reports that capture detailed information about expenses incurred during travel. Users can analyze spending patterns, budget adherence, and identify any discrepancies in travel costs, which supports effective financial management and decision-making.

The Reports Module can provide summary reports for individual travelers or consolidated data for an entire organization, making it invaluable for tracking overall travel expenditures. It helps ensure accountability and transparency in travel spending, which is crucial in a government context where budget constraints and fiscal responsibility are paramount.

Other options, while relevant in the travel process, do not focus specifically on the tracking of expenditures the same way the Reports Module does. The Expense Report allows travelers to submit and categorize expenses but is more about the documentation of individual costs rather than tracking expenditures at a broader level. Travel Tracker might refer to systems that monitor travel schedules instead of expenditures. The Audit Module is typically used for reviewing processes and ensuring compliance, rather than for actively tracking expenses.