2 USC 637 - Legislation dealing with Congressional budget must be handled by Budget Committees

No bill, resolution, amendment, motion, or conference report, dealing with any matter which is within the jurisdiction of the Committee on the Budget of either House shall be considered in that House unless it is a bill or resolution which has been reported by the Committee on the Budget of that House (or from the consideration of which such committee has been discharged) or unless it is an amendment to such a bill or resolution.