prepared under section 402 of the Congressional Budget Act of 1974 with respect to any bill or joint resolution, an estimate of any change in debt service costs resulting from carrying out such bill or resolution. Any estimate of debt service costs provided under this section shall be advisory and shall not be used for purposes of enforcement of such Act, the Rules of the House of Representatives, or this concurrent resolution. This section shall not apply to authorizations of programs funded by discretionary spending or to appropriation bills or joint resolutions, but shall apply to changes in the authorization level of appropriated entitlements. 306. Fair-value credit estimates (a) All credit programs Whenever the Director of the Congressional Budget Office provides an estimate of any measure that establishes or modifies any program providing loans or loan guarantees, the Director shall also, to the extent practicable, provide a fair-value estimate of such loan or loan guarantee program if requested by the chair of the Committee on the Budget of the House of Representatives. (b) Student financial assistance and housing programs The Director of the Congressional Budget Office shall provide, to the extent practicable, a fair-value estimate as part of any estimate for any measure that establishes or modifies a loan or loan guarantee program for student financial assistance or housing (including residential mortgage). (c) Baseline estimates The Congressional Budget Office shall include estimates, on a fair-value and credit reform basis, of loan and loan guarantee programs for student financial assistance, housing (including residential mortgage), and such other major loan and loan guarantee programs, as practicable, in its The Budget and Economic Outlook: 2018 to 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