Final answer:
The Budget Committee reviews potential legislative proposals from executive agencies and assesses their budgetary implications, working in conjunction with the Appropriations Committees to set specific funding levels.
Step-by-step explanation:
The review of potential legislative proposals suggested by executive agencies and the assessment of their budgetary implications are typically handled by the Budget Committee. Once the President has proposed a budget, it is presented to Congress, where the House and Senate Budget Committees begin their work. They study the proposals with the assistance of the Congressional Budget Office (CBO), prepare a budget resolution, and set ceilings for budget items. The Appropriations Committees in both chambers then decide on the specific appropriations needed for federal agencies. The Appropriations Committees play a critical role in the discretionary spending and funding for programs, determining how the allotted money is divided among agencies.