; and (2) by striking paragraphs (3) and (4) and inserting the following: (3) This subsection applies to all prisoners serving a term of imprisonment for offenses committed on or after November 1, 1987. With respect to a prisoner serving a term of imprisonment on the date of the enactment of the SAFE Justice Act , this subsection shall apply to the entirety of the sentence imposed on the prisoner, including time already served. (4) A prisoner may not be awarded credit under this subsection that would cause the prisoner to be eligible for release earlier than the time the prisoner already has served. . (b) Effective date The amendments made by subsection (a) take effect 90 days after the date of the enactment of this Act. 613. Analysis of fiscal implications for inclusion in presentence reports (a) Factors To be considered in imposing a sentence Section 3553(a)(3) of title 18, United States Code, is amended by striking the semicolon and inserting and the average annual fiscal cost of each