Which institute sets resource ceilings and provides budget authority for the Department of Defense (DoD?

The Office of Management and Budget (OMB) sets resource ceilings and provides budget authority for the Department of Defense (DoD). It plays a crucial role in the federal budget process by coordinating the budget proposals from various federal agencies, including the DoD, ensuring they align with overall government fiscal policies. Additionally, Congress is responsible for approving the final budget, including specific allocations for the DoD.