Obligating Carryover Funds in Violation of OMB Zero-Dollar Apportionment Rule

At least in circumstances where an agency fails to submit an apportionment request for carryover funds to the Office of Management and Budget before the start of a fiscal year, the automatic zero-dollar apportionment effected by section 120.57 of OMB Circular A-11 is a valid apportionment for purposes of the Anti-Deficiency Act. As a result, in such circumstances, 31 U.S.C. § 1517 would prohibit an agency from expending or obligating funds exceeding that apportionment of zero.