Who is responsible for approving operating instructions for the use of imprest funds?

The Resource Manager is the correct choice because this individual is responsible for overseeing the financial management of resources, including imprest funds. The Resource Manager ensures that operating instructions align with financial policies and guidelines, which helps maintain accountability and proper usage of funds. This role typically includes the authorization of expenditures and the oversight of financial transactions, making it essential for the Resource Manager to approve operating instructions that govern how imprest funds should be utilized within the unit.

In contrast, while the Installation Commander has overarching authority at the installation level, and the Financial Officer may provide guidance on financial regulations, it is the Resource Manager who has the specific responsibility for the approval of operating instructions related to the day-to-day management of financial resources. The Activity Manager typically operates under the direction of the Resource Manager and is focused on the functional aspects of a specific program rather than the overarching financial policies that would encompass imprest fund usage.