What documents are required for liquidation of cash advances for Petty Operating Expenses?

The correct choice regarding the documents required for the liquidation of cash advances for Petty Operating Expenses is the Report of Disbursements. This report is essential because it provides a detailed account of how the cash advance was utilized. It typically includes specific information about each expense incurred—what the funds were spent on, the amount, and the corresponding dates. This transparency is crucial for proper accounting and auditing purposes, as it allows for tracking where public funds have been allocated and ensures that they have been used for legitimate operational expenses.

In contrast, the other documents mentioned do not serve the same purpose in this context. Account Statements may provide an overview of funds but do not detail how cash advances were spent. Budget Proposals outline anticipated expenses and funding allocations but do not provide a record of expenditures already made. Contracts relate to specific agreements and do not directly pertain to the liquidation process of cash advances. Therefore, the Report of Disbursements is the most relevant and necessary document in this scenario.