Within 15 calendar days after Congress adjourns to end a session there shall be a sequestration to eliminate a budget-year breach, if any, within any category.
Each non-exempt account within a category shall be reduced by a dollar amount calculated by multiplying the enacted level of sequestrable budgetary resources in that account at that time by the uniform percentage necessary to eliminate a breach within that category.
If the President uses the authority to exempt any personnel account from sequestration under section 905(f) of this title, each account within subfunctional category 051 (other than those military personnel accounts for which the authority provided under section 905(f) of this title has been exercised) shall be further reduced by a dollar amount calculated by multiplying the enacted level of non-exempt budgetary resources in that account at that time by the uniform percentage necessary to offset the total dollar amount by which outlays are not reduced in military personnel accounts by reason of the use of such authority.
If, after June 30, an appropriation for the fiscal year in progress is enacted that causes a breach within a category for that year (after taking into account any sequestration of amounts within that category), the discretionary spending limits for that category for the next fiscal year shall be reduced by the amount or amounts of that breach.
If an appropriation for a fiscal year in progress is enacted (after Congress adjourns to end the session for that budget year and before July 1 of that fiscal year) that causes a breach within a category for that year (after taking into account any prior sequestration of amounts within that category), 15 days later there shall be a sequestration to eliminate that breach within that category following the procedures set forth in paragraphs (2) through (4).
As soon as practicable after Congress completes action on any discretionary appropriation, CBO, after consultation with the Committees on the Budget of the House of Representatives and the Senate, shall provide OMB with an estimate of the amount of discretionary new budget authority and outlays for the current year, if any, and the budget year provided by that legislation.
Not later than 7 calendar days (excluding Saturdays, Sundays, and legal holidays) after the date of enactment of any discretionary appropriation, OMB shall transmit a report to the House of Representatives and to the Senate containing both the CBO and OMB estimates of the amount of discretionary new budget authority for the current year, if any, and the budget year provided by that legislation, and an explanation of any difference between the 2 estimates. If during the preparation of the report OMB determines that there is a significant difference between OMB and CBO, OMB shall consult with the Committees on the Budget of the House of Representatives and the Senate regarding that difference and that consultation shall include, to the extent practicable, written communication to those committees that affords such committees the opportunity to comment before the issuance of the report.
OMB estimates under this paragraph shall be made using current economic and technical assumptions. OMB shall use the OMB estimates transmitted to the Congress under this paragraph. OMB and CBO shall prepare estimates under this paragraph in conformance with scorekeeping guidelines determined after consultation among the Committees on the Budget of the House of Representatives and the Senate, CBO, and OMB.
For purposes of this paragraph, amounts provided by annual appropriations shall include any discretionary appropriations for the current year, if any, and the budget year in accounts for which funding is provided in that legislation that result from previously enacted legislation.
When the President submits the budget under section 1105 of title 31, OMB shall calculate and the budget shall include adjustments to discretionary spending limits (and those limits as cumulatively adjusted) for the budget year and each outyear to reflect changes in concepts and definitions. Such changes shall equal the baseline levels of new budget authority and outlays using up-to-date concepts and definitions, minus those levels using the concepts and definitions in effect before such changes. Such changes may only be made after consultation with the Committees on Appropriations and the Budget of the House of Representatives and the Senate, and that consultation shall include written communication to such committees that affords such committees the opportunity to comment before official action is taken with respect to such changes.
As used in this subparagraph, the term “additional new budget authority” means the amount provided for a fiscal year, in excess of $117,000,000, in an appropriation Act and specified to pay for grants to States under section 306 of the Social Security Act [42 U.S.C. 506].
The term “additional new budget authority” means the amount provided for a fiscal year in an appropriation Act that is in excess of the average costs for wildfire suppression operations as reported in the budget of the President submitted under section 1105(a) of title 31 for fiscal year 2015 and are specified to pay for the costs of wildfire suppression operations in an amount not to exceed the amount specified for that fiscal year in clause (i).
If, for fiscal year 2020, appropriations for the Periodic Censuses and Programs account of the Bureau of the Census of the Department of Commerce are enacted that the Congress designates in statute as being for the 2020 Census, then the adjustment for that fiscal year shall be the total of such appropriations for that fiscal year designated as being for the 2020 Census, but shall not exceed $2,500,000,000.