“(a) Special message requirement.—With respect to budget authority proposed to be rescinded or that is set to be reserved or proposed to be deferred in a special message transmitted under section 1012 or 1013, such budget authority—

“(1) shall be made available for obligation in sufficient time to be prudently obligated as required under section 1012(b) or 1013; and

“(2) may not be deferred or otherwise withheld from obligation during the 90-day period before the expiration of the period of availability of such budget authority, including, if applicable, the 90-day period before the expiration of an initial period of availability for which such budget authority was provided.

“(b) Administrative requirement.—With respect to an apportionment of any appropriations (as that term is defined in section 1511 of title 31, United States Code) made pursuant to section 1512 of such title, the appropriations shall be apportioned—

“(1) to make available all amounts for obligation in sufficient time to be prudently obligated; and

“(2) to make available all amounts for obligation, without precondition (including footnotes) that shall be met prior to obligation, not later than 90 days before the expiration of the period of availability of such appropriations, including, if applicable, 90 days before the expiration of an initial period of availability for which such appropriations were provided.”.

“(a) Special message requirement.—With respect to budget authority proposed to be rescinded or that is set to be reserved or proposed to be deferred in a special message transmitted under section 1012 or 1013, such budget authority—

“(1) shall be made available for obligation in sufficient time to be prudently obligated as required under section 1012(b) or 1013; and

“(2) may not be deferred or otherwise withheld from obligation during the 90-day period before the expiration of the period of availability of such budget authority, including, if applicable, the 90-day period before the expiration of an initial period of availability for which such budget authority was provided.

“(b) Administrative requirement.—With respect to an apportionment of any appropriations (as that term is defined in section 1511 of title 31, United States Code) made pursuant to section 1512 of such title, the appropriations shall be apportioned—

“(1) to make available all amounts for obligation in sufficient time to be prudently obligated; and

“(2) to make available all amounts for obligation, without precondition (including footnotes) that shall be met prior to obligation, not later than 90 days before the expiration of the period of availability of such appropriations, including, if applicable, 90 days before the expiration of an initial period of availability for which such appropriations were provided.”.