; and (B) ending on the last day of the debt ceiling crisis period. (2) Special rule relating to obligations issued during extension period Effective on the last day of a debt ceiling crisis period, the limitation in effect under section 3101(b) of title 31, United States Code, shall be increased to the extent that— (A) the face amount of obligations issued under chapter 31 of such title and the face amount of obligations whose principal and interest are guaranteed by the United States Government (except guaranteed obligations held by the Secretary of the Treasury) outstanding on the first day of the debt ceiling crisis period; exceeds (B) the face amount of such obligations outstanding on the last day of the debt ceiling crisis period. (3) Extension limited to necessary obligations An obligation shall not be taken into account under paragraph (2)(A) unless the issuance of such obligation was necessary to fund a commitment incurred pursuant to law by the Federal Government that required payment on or before the last day of the applicable debt ceiling crisis period. (d) Reports (1) In general Not later than 30 days after the first day of a debt ceiling crisis period, and every 30 days thereafter until the date that is 30 days after the end of the debt ceiling crisis period, the Director of the Office of Management and Budget shall submit to Congress a report detailing the rescission of discretionary appropriations under subsection (b) with respect to the debt ceiling crisis period. (2) Review by GAO Not later than 90 days after the date on which the Director of the Office of Management and Budget submits each report under paragraph (1), the Comptroller General of the United States shall submit to Congress a report evaluating the description of the rescission of discretionary appropriations in the report by the Director of the Office of Management and Budget.