Which document is crucial for reporting supply discrepancies?

The correct choice is DD Form 200, as it specifically serves as a report of survey for property loss, damage, or destruction. This form is essential for documenting supply discrepancies because it allows supervisors and personnel to formally account for missing or damaged supplies, ensuring that issues are properly addressed according to military standards and procedures. It outlines the circumstances surrounding the discrepancy, provides justifications, and helps initiate investigations into the supply issues. As such, it is a vital tool for maintaining accountability and integrity within supply chain management.

The other forms listed have different purposes: Standard Form 368 is primarily used for material inspection and receiving reports, DD Form 1348-1 is a requisition and issue release document for supplies, and DD Form 1149 serves as a shipping form that details items that are being transported. While these documents are important in their respective contexts, they do not specifically focus on the reporting and investigation of supply discrepancies like DD Form 200 does.