(a) Adjustments of discretionary and direct spending levels In the House of Representatives, if a committee (other than the Committee on Appropriations) reports a bill or joint resolution, or an amendment thereto is offered or conference report thereon is submitted, providing for a decrease in direct spending (budget authority and outlays flowing therefrom) for any fiscal year and also provides for an authorization of appropriations for the same purpose, upon the enactment of such measure, the chair of the Committee on the Budget may decrease the allocation to the applicable authorizing committee that reports such measure and increase the allocation of discretionary spending (budget authority and outlays flowing therefrom) to the Committee on Appropriations for fiscal year 2019 by an amount equal to the new budget authority (and outlays flowing therefrom) provided for in a bill or joint resolution making appropriations for the same purpose. (b) Determinations In the House of Representatives, for purposes of enforcing this concurrent resolution, the allocations and aggregate levels of new budget authority, outlays, direct spending, revenues, deficits, and surpluses for fiscal year 2019 and the total of fiscal years 2019 through 2028 shall be determined on the basis of estimates made by the chair of the Committee on the Budget and such chair may adjust the applicable levels in this concurrent resolution. 308. Limitation on transfers from the general fund of the Treasury to the Highway Trust Fund In the House of Representatives, for purposes of the Congressional Budget Act of 1974, the Balanced Budget and Emergency Deficit Control Act of 1985, and the rules or orders of the House of Representatives, a bill or joint resolution, or an amendment thereto or conference report thereon, that transfers funds from the general fund of the Treasury to the Highway Trust Fund shall be counted as new budget authority and outlays equal to the amount of the transfer in the fiscal year the transfer occurs. 309. Prohibition on use