2027. (d) Enforcement in the House of Representatives If the Director of the Congressional Budget Office provides an estimate pursuant to subsection (a) or (b), the chair of the Committee on the Budget of the House of Representatives may use such estimate to determine compliance with the Congressional Budget Act of 1974 and other budget enforcement requirements. 307. Estimates of macroeconomic effects of major legislation (a) CBO and JCT estimates During the 115th Congress, any estimate of major legislation considered in the House of Representatives or the Senate provided by the Congressional Budget Office under section 402 of the Congressional Budget Act of 1974 or by the Joint Committee on Taxation to the Congressional Budget Office under section 201(f) of such Act shall, to the extent practicable, incorporate the budgetary effects of changes in economic output, employment, capital stock, and other macroeconomic variables resulting from such major legislation. (b) Contents Any estimate referred to in subsection (a) shall, to the extent practicable, include— (1) a qualitative assessment of the budgetary effects (including macroeconomic variables described in subsection (a)) of major legislation in the 20-fiscal year period beginning after the last fiscal year of the most recently agreed to concurrent resolution on the budget that sets forth budgetary levels required under section 301 of the Congressional Budget Act of 1974